Orthopaedic - Orthopaedic Surgeons for Spondylolysis in Attica

Mylonas Xrysanthos is an Orthopedic Surgeon - Traumatologist with private practices in Anavyssos, Lavrio, and Glyfada. He holds a degree from the Medical School of Aristotle University of Thessaloniki and completed his specialty in General Surgery at the General State Hospital of Nikaia. Throughout his professional career, he served as a Scientific Collaborator at IKA Lavrio for over 15 years. Currently, in addition to his private practices, he is a Scientific Collaborator at the private hospital Medirerraneo in the Glyfada area. Furthermore, he regularly attends conferences in Greece and abroad covering the entire spectrum of Orthopedics, including topics such as osteoporosis, trauma, surgical arthroplasty, geriatric patients, and bone neoplasms. He also participates in various research projects and presentations both in Greece and internationally.

Ο Γεώργιος Πολονύφης είναι Ορθοπαιδικός Χειρουργός, διατηρεί ιδιωτικό ιατρείο στην Αθήνα ενώ παράλληλα είναι Διευθυντής της Ορθοπαιδικής Κλινικής στο Ιατρικό κέντρο Περιστερίου. Πραγματοποιεί τις χειρουργικές του επεμβάσεις σε μεγάλες ιδιωτικές κλινικές της Αθήνας και της Περιφέρειας ενώ συνεργάζεται και με το Ιατρικό Κέντρο Ψυχικού. Είναι πτυχιούχος της Ιατρικής Σχολής του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών. Υπηρέτησε και εκπλήρωσε την στρατιωτική του θητεία στον Στρατό Ξηράς ως οπλίτης ιατρός του υγειονομικού ,αντιμετωπίζοντας πολλαπλά περιστατικά επείγοντος ορθοπαιδικού τραύματος κατά τη διάρκεια της θητείας του. Στο πλαίσιο της ειδίκευσης του στην Ορθοπαιδική Χειρουργική, άρχισε την ειδικότητά του και εργάστηκε στο Γενικό Νοσοκομείο Μεσολογγίου στο τμήμα της Γενικής Χειρουργικής με έμφαση στην αντιμετώπιση του επείγοντος χειρουργικού τραύματος. Εν συνεχεία εργάστηκε και ειδικεύτηκε στο Γενικό Νοσοκομείο Παίδων Αθηνών "Η Αγία Σοφία" στο τμήμα της Παιδοορθοπαιδικής όπου συμμετείχε σε πολυάριθμες παιδοορθοπαιδικές επεμβάσεις (τραυματολογία, αντιμετώπιση σκολίωσης, αντιμετώπιση συγγενών δυσπλασιών του μυοσκελετικού) καθώς και εκπαιδεύτηκε και στο υπερηχογράφημα ισχίου νεογνών για τη διάγνωση συγγενούς δυσπλασίας του ισχίου όπου και έλαβε την διεθνή πιστοποίηση απ΄τον παγκοσμίου φήμης καθηγητή Reinhard Graf, αντιμετωπίζοντας παράλληλα πολλαπλά επείγοντα και τακτικά περιστατικά. Απέκτησε εμπειρία στην διάγνωση και αντιμετώπιση παραμορφώσεων σπονδυλικής στήλης (σκολίωση, κύφωση, λόρδωση) καθώς και στις διαταραχές βάδισης και παραμορφώσεις άκρων ποδών. Έπειτα συνέχισε την ειδίκευσή του στο Γενικό Νοσοκομείο Ασκληπιείο Βούλας, όπου ασχολήθηκε με όλο το φάσμα των ορθοπαιδικών παθήσεων ενηλίκων, λαμβάνοντας μέρος σε πολυάριθμες χειρουργικές επεμβάσεις όπως επεμβάσεις τραυματολογίας, επανορθωτικής χειρουργικής αρθρώσεων(ολικές αρθροπλαστικές), αρθροσκοπήσεις, χειρουργικής άνω άκρου, χειρουργικής σπονδυλικής στήλης, επεμβάσεις μικροχειρουργικής, χειρουργική άκρου ποδός, επείγουσα αντιμετώπιση ορθοπαιδικού τραύματος κ.α. Συνέχισε την ειδίκευσή του στο Γενικό Νοσοκομείο Ατυχημάτων Κ.Α.Τ. Αθηνών στο Τμήμα Χειρουργικής Άνω Άκρου - Μικροχειρουργικής Άκρας Χειρός αντιμετωπίζοντας όλο το εύρος της τραυματολογίας του άνω άκρου καθώς και χρονίων παθήσεων του χεριού, λαμβάνοντας μέρος σε μεγάλο αριθμό επεμβάσεων μικροχειρουργικής άκρας χειρός, αρθροσκοπικής αποκατάστασης παθήσεων του ώμου(αρθροσκοπήσεις ώμου), χειρουργικής αποκατάστασης χρόνιων παθήσεων του άνω άκρου και αντιμετώπισης όλων των επειγόντων και τακτικών περιστατικών των παθήσεων του άνω άκρου συμμετέχοντας παράλληλα στην τρίμηνη πρακτική άσκηση της μικροχειρουργικής στο Εργαστήριο Έρευνας Μυοσκελετικών Παθήσεων του Γ.Ν.Α. ΚΑΤ. Συνέχισε την εκπαίδευσή του στο Γ.Ν.Α ΚΑΤ Αθηνών στο τμήμα Αρθροσκοπήσεων μικρών και μεγάλων αρθρώσεων συμμετέχοντας σε πολυάριθμες αρθροσκοπικές επεμβάσεις. Συνέχισε κατόπιν,στα πλαίσια της ειδίκευσής του, στο Τμήμα Αγγειοχειρουργικής του Γ.Ν.Α ΚΑΤ όπου συμμετείχε σε μείζονες και ελάσσονες αγγειοχειρουργικές επεμβάσεις με έμφαση στην αποκατάσταση τραυματισμών περιφερικών αγγείων στο επείγον ορθοπαιδικό τραύμα. Εν συνεχεία επέστρεψε στο Γ.Ν Ασκληπιείο Βούλας όπου και ολοκλήρωσε την ειδίκευσή του στην Ορθοπαιδική Χειρουργική. Ο ιατρός έχει εργαστεί ως ιατρός αγώνων ποδοσφαίρου και καλαθοσφαίρισης σε πρωταθλήματα του νομού Αττικής ως μέλος της ΑΘΛΕΤΙΑ (Αθλητιατρική Εταιρεία Ιατρών Αγώνων). Ο ιατρός είναι κάτοχος του ATLS(AdvancedTraumaLifeSupport),έχει συμμετάσχει σε πολυάριθμα συνέδρια του εσωτερικού και του εξωτερικού όπου υπήρξε και ομιλητής. Eπίσης έχει συμμετάσχει σε πολλαπλά επιστημονικά σεμινάρια, συνέδρια και courses Ορθοπαιδικής Χειρουργικής σε μια διαρκή προσπάθεια εξέλιξης και ενημέρωσης γύρω από τα νεότερα και πιο έγκυρα δεδομένα στον τομέα της ορθοπαιδικής. Παράλληλα, είναι εκπαιδευτής νέων συναδέλφων του σε πολλά Courses του εξωτερικού και του εσωτερικού.

Dr. Giannakos Athanasios-Rene S. is specialized in arthroscopic surgery of sports-related knee and shoulder injuries, as well as in M.I.S. Fast Track total knee and hip arthroplasty. He initiated and completed his Orthopedic Surgery and Traumatology residency at the University General Hospital of Larissa in the Orthopedic Clinic Department under the direction of Professor K.N. Malizos. He is a PhD candidate at the Medical School of the University of Thessaly. During the final year of his residency, he trained in shoulder and knee arthroscopic surgery at the Minimal Access Surgery Unit of the I.R.C.C.S. GSD Hospital, Milan, Italy, under Professor and Director Prof. Pietro Randelli. He also trained in M.I.S. Fast Track total hip and knee arthroplasty and arthroscopic surgery at the Luganese Hospital, Lugano, Switzerland, under Professor and Director Prof. Mateo Denti. Immediately after obtaining his specialty certification, he was appointed as a permanent consultant at the Minimal Access Surgery Unit of the I.R.C.C.S. GSD Hospital, Milan, Italy, under Professor and Director Prof. Pietro Randelli. He began his Sports Medicine specialty at the University Hospital Catanzaro, Italy, following entrance exams, holding a salaried position and scholarship from the E.U., under the direction of Professor Pietro Scotto di Vettimo. During the first year of the specialty, he trained at the University Hospital Chieti, Italy, in the Sports Medicine Department under the direction of Professor Leonardo Vecchiet. There are articles, lectures, and surgeries by him available online. He collaborates with "Athens Medical Center," "Mitera" Hospital, and Mediterraneo Hospital, and is a scientific collaborator. He maintains private practice offices in Chalandri and Nea Smyrni.

Georgios Xatzimarkakis MD, MSc is an Orthopedic Surgeon with private practices in Patras and Ilisia. He holds a medical degree from the University of Florence, Italy, and specialized in General Surgery at the General Hospital for Thoracic Diseases “Sotiria” and in Orthopedic Surgery and Traumatology at the 1st Orthopedic Clinic of the General Hospital of Athens KAT. He subsequently completed a Clinical Fellowship in Orthopaedics at Lewisham University Hospital of the National Health Service Trust in London. Additionally, he pursued a postgraduate program focused on Metabolic Bone Diseases - Osteoporosis at the Medical School of the National and Kapodistrian University of Athens. He is a scientific collaborator with the Athens Medical Group, the General Clinic of Olympio Therapeutirion, Mediterraneo Boutique Hospital, Henry Durant Hospital Center, and serves as the scientific director at the Medical Polyclinic of Patras. Furthermore, he has published articles and research papers both in Greece and internationally.

Armakolas Nikolaos MD, MSc, PhD is an Orthopedic Surgeon and maintains a private practice in Nea Smyrni. He holds a Doctorate from the Medical School of the National and Kapodistrian University of Athens with a Master’s Degree in "Metabolic Bone Diseases" from the same University. Additionally, he is a Scientific Collaborator at the 3rd Orthopedic Clinic of the General Hospital of Attica KAT, at the "Hygeia" Clinic in Marousi, and at the private clinic "Leto" in Kalamata, while also collaborating with major clinics such as the Iatriko and Mediterraneo Hospital. At his practice, he provides comprehensive information and appropriate treatment tailored to each patient’s needs, following the most modern techniques. Finally, the doctor is a member of the Medical Association of Athens, the Medical Association of the United Kingdom, and the Medical Association of Sweden.

Dr. Kormpakis Ioannis is an Orthopedic Surgeon - Traumatologist. He is the Director of the Orthopedic Clinic at Metropolitan General and the Director of the Upper Limb and Microsurgery Clinic. Since 2018, he has held a PhD from the Medical School of the National and Kapodistrian University of Athens and has specialized training from Washington University in the United States of America in Arthroscopic and Microsurgery of the Upper Limb (Shoulder - Elbow and Hand), Peripheral Nerves - Brachial Plexus as well as Ankle and Foot Surgery. Dr. Kormpakis Ioannis maintains private practices in Chalandri and Acharnes and performs numerous surgical procedures across a broad spectrum of Orthopedic and Traumatology conditions at private hospitals with which he collaborates (Metropolitan General, Therapis General, Athens Bioclinic, Medical Center, Mediterraneo Hospital). He is a member of the Hellenic Society of Reconstructive Microsurgery, the Hellenic Society of Orthopedic Surgery and Traumatology, and the Hellenic Society of Hand Surgery. Furthermore, he continues to publish numerous scientific papers in collaboration with world-renowned orthopedic surgeons in scientific journals based in the United States of America and the United Kingdom. Through his ongoing participation in numerous conferences in Greece and abroad and through his personal research on tendon and nerve injuries, he stays continually updated on surgical and conservative-regenerative treatment approaches for conditions such as arthropathies and tendon and nerve injuries.

Dr. Tsapakidis Giannis was born in Larisa in 1975 and graduated from the Medical School of Aristotle University of Thessaloniki in 2000. He completed his Orthopedic specialty residency at Tzaneio General Hospital of Piraeus, with part of his training conducted at KAT Hospital and Charing Cross Hospital in London. He received a scholarship from AO and worked as a Fellow at the Sports Injuries and Trauma Center of Queens Medical Centre University Hospital in Nottingham. He is a PhD candidate at the University of Athens and a member of AO ALUMNI. Since 2006, he has served as the team physician for the women's basketball team “ESPERIDES” Kallithea (Women’s A1 Basketball Champion for 2006-07 and 2008-09 and Greek Cup Winner for 2005-06, 2006-07, 2007-08, and 2008-09). From 2015 to 2018, he was part of the medical team covering orthopedic concerns for the athletes of KAE AEK. Since 2013, he has provided medical coverage for the basketball team PROTEAS VOULAS and from 2015 to 2025 served as the medical provider for the athletes of the basketball team KAE AMAROUSIOU. From 2021 to 2023, he was the team physician for the WOMEN'S NATIONAL BASKETBALL TEAM, and from 2022 to 2024 for the team of PANIONIOS B.C. Previously, he was part of the medical team covering orthopedic needs of the athletes of KAE PANELLINIOS from 2008 to 2011 and the Cultural and Sports Center “DAIS.” Subsequently, from 2018 to 2022, he provided medical coverage to the athletes of MELLISION and since 2018 to the athletes of ESPEROS B.C. Finally, starting this year, he has been the medical provider for the amateur club PANATHINAIKOS A.O. He has attended specialized seminars/workshops in Traumatology, Microsurgery, and Arthroscopic Surgery both in Greece and abroad. He has participated with publications/presentations in Greek and International scientific conferences and journals.

Dr Loupas Dimitrios is an Orthopedic Surgeon and maintains a private practice in Chalandri. He graduated from the Medical School of the National and Kapodistrian University of Athens. He specialized at the University Orthopedic Clinic at KAT Hospital and completed his doctoral dissertation at the Medical School of the University of Athens. He specialized in sports injuries (Sports Injuries Clinic at KAT) and at the Athens Medical Center (under the direction of L. Nikolaou). Additionally, the doctor has worked at the 1st and 3rd IKA Hospitals and has served as Director of the Orthopedic Clinic of the General Hospital of Athens "Evangelismos". He is involved in general orthopedic surgical conditions, with a specialization in disorders of the hand and knee (including knee arthroscopy) and total knee and hip arthroplasties.

Mixas Giorgos is an Orthopedic Surgeon and maintains his private practice in Acharnes. He holds a medical degree from the National and Kapodistrian University of Athens, has completed a postgraduate program in "Metabolic Bone Diseases," and is a PhD candidate at the same university. He has received additional training in ATLS (Advanced Trauma Life Support) and the Knee Arthroscopy Course (Geneva). The doctor specialized in Orthopedics and Traumatology at hospitals in Belgium, Switzerland, and Greece and has served as a Medical Team Collaborator for the PAE Apollon Smyrnis football team. In his private practice, he manages a wide range of cases, focusing on providing the best possible care tailored to the individual needs of each patient, as every case is unique and requires a combination of appropriate techniques. The clinic facilities are suitably designed to ensure patients' stay is pleasant, friendly, and comfortable.

Pathiakis Ioannis Md, MSc, PhD is an Orthopedic Surgeon who maintains a private practice in Peristeri. He holds a medical degree from the Medical School of the National and Kapodistrian University of Athens and has obtained two postgraduate degrees in "Minimally Invasive Surgery, Robotic Surgery & Tele-surgery Medicine" and "Surgical Anatomy" from the Medical School of the same university. Additionally, he holds a Doctorate from the National and Kapodistrian University of Athens in the Department of Anatomy. He is specialized in Robotic Knee and Hip Surgery and in Microsurgical Bloodless Carpal Tunnel Release and holds a diploma in Medical Acupuncture from the Scientific Association of Medical Acupuncturists of Greece. He has completed training at numerous hospitals, while his specialty was completed in General Surgery at the General Hospital of Ierapetra. Furthermore, during his career, he has taught courses on First Aid, Traumatology, and musculoskeletal injuries at the IEK of Siteia and at the Volunteer Corps of Samaritans and Rescuers of Siteia, respectively. Finally, as part of his continuous education and updating in microsurgery and medical acupuncture, the physician regularly attends medical conferences, earning personal honorary distinctions.

Beyond Medicine, he holds a degree in Social Theology from the Theological School of Athens.

Liosis Konstantinos is an Orthopedic Surgeon with a private practice in Chalandri, a member of the Medical Team of KAE Panathinaikos, and a Consultant at the Orthopedic Clinic of HYGEIA Hospital. He holds a medical degree from the School of Health Sciences at Ovidius University and a postgraduate degree from the Department of Metabolic Bone Diseases at the Medical School of the National and Kapodistrian University of Athens. Additionally, he has specialized in the management of persistent pain and inflammation, holding a Diploma in Neural Therapy, a therapeutic technique utilizing local anesthetics for the management of acute and chronic pain. His private practice offers a range of services, including meniscal arthroscopy, cruciate ligament arthroscopy, osteoporosis screening, and chondropathy arthroscopy. Furthermore, he is a member of the Hellenic Osteoporosis Foundation, the Hellenic Society of Orthopedic Surgery and Traumatology, and the Hellenic Society of Neural Therapy and Homeostasis Study, while actively attending multiple conferences to stay updated with ongoing advancements in the field.

Vamvatsikos Konstantinos is an Orthopedic Surgeon with private clinics in Agios Stefanos and Oropos. After completing his studies, he specialized in Orthopedics at the 5th Orthopedic Clinic of the General Hospital of Attica KAT, in the Spine and Scoliosis Unit. Subsequently, he received further training at Sheffield Hospital in England, focusing on specialized conditions primarily affecting the spine. In his private clinics, he manages all orthopedic conditions, with particular expertise over the past 10 years in the DRX 9000 technology, a digital decompression bed that successfully treats complex spinal disorders such as sciatica, herniated intervertebral discs, and discopathies with high success rates. More than 8,000 cases of complex spinal disorders have been treated using DRX 9000 technology, which is an FDA-certified American innovation also utilized by NASA. Additionally, he operates podology departments offering reflexology sessions, pedobarography, and the fabrication of custom digital technology insoles, as well as departments for acupuncture, ozone therapy, and osteoporosis. Bone density measurements for osteoporosis diagnosis and treatment of arthritis conditions in the knee, shoulder, or hip are also conducted, utilizing collagen infiltration, hyaluronic acid, autologous activated platelet-rich plasma, and stem cell therapies.

Tsimplakis Mixalis is an Orthopedic Surgeon - Sports Medicine Specialist, Deputy Director of the 8th Orthopedic Clinic at Metropolitan General, and maintains a private practice in Nea Smyrni. He is a graduate of the Medical School of the National and Kapodistrian University of Athens and has received advanced training in Shoulder Arthroscopic Surgery at the 401 General Military Hospital of Athens. He has particular expertise in knee arthroplasty, meniscal arthroscopy, chondropathy arthroscopy, shoulder arthroscopy, osteoporosis management, as well as monitoring kyphosis, scoliosis, and fractures. Additionally, he collaborates with the Medical Center of Palaio Faliro, BioClinic of Piraeus, and Doctors Hospital. Finally, the physician has contributed to scientific publications both in Greece and internationally.

Mandals Konstantinos is an Orthopedic Surgeon with a private practice in Kaisariani. He graduated from the Medical School of the National and Kapodistrian University of Athens and completed his specialty training in the Orthopedic Clinic of the General Hospital of Athens "G. Gennimatas," at the General Children's Hospital "P. & A. Kyriakou," and at the Special Anti-Cancer Hospital of Piraeus "Metaxa." During his specialty training, he participated in 1120 surgeries, either as the primary or assistant surgeon, dealing with fractures and dislocations as well as chronic orthopedic cases, such as knee and hip arthroplasties, knee and shoulder arthroscopies, spinal fusions, and discectomies. To date, he has numerous publications in Greek and international conferences, actively participating as a speaker, maintaining excellent training, deep knowledge, and continuous professional development in his field. Finally, he is a member of the Athens Medical Association, the AO Foundation, the Hellenic Society of Orthopedic Surgery and Traumatology, and the Hellenic Osteoporosis Foundation.

Anoua Nikolaos is a specialized Orthopedic Surgeon and Traumatologist with a private practice in Vrilissia. He has extensive clinical and surgical experience with adults as well as a particular focus on Pediatric Orthopedics. He graduated from the Medical School of Democritus University of Thrace and obtained his specialty title in Orthopedic Surgery and Traumatology in 2019. He has served at leading hospitals in the country, such as the General Hospital of Athens "KAT", Metropolitan Hospital, IASO Children’s Hospital, Athens Medical Center, and OSTEON Orthopedic & Spine Clinic, covering a wide range of cases in both children and adults. His expertise also includes additional experience in Pediatric Orthopedics at the General Children’s Hospital of Athens "P. & A. Kyriakou". He is a member of important scientific associations, including the Athens Medical Association, the General Medical Council (UK), the Hellenic Society of Surgery and Orthopedic Traumatology (EEXOT), and the Hellenic Society of Out-of-Hospital Emergency Medicine (EEEE). His goal is to provide personalized and scientifically substantiated care, emphasizing patient safety, functionality, and improvement of quality of life.

Flevarakis Georgios is an Orthopedic Surgeon and maintains private practices in Voula, Cholargos within Metropolitan General, and in Neos Kosmos within Athenian Lab & Medicine. He graduated from the Medical School of the University of Patras, where he was admitted following nationwide examinations. His initial exposure to Orthopedic specialization was at the Orthopedic Clinic of the Naval Hospital of Athens (2006-2008). From 2008 to 2011, he served in the Orthopedic Oncology Department of the Anticancer-Oncology Hospital "Agios Savvas". In 2011, he continued his specialization in the Shoulder Surgery Department of the General Hospital Asklipieio Voula. In 2014, after completing his specialization, he obtained the title of Orthopedic Surgeon following examinations. From 2014 to 2016, he held a salaried position (Clinical Shoulder and Elbow Fellow) in the Shoulder and Elbow Surgery Department of the University Hospital of Liverpool, one of the largest referral centers in the United Kingdom. Since returning to Greece in 2016, he maintains his private practice in Voula and also works at the private hospital Metropolitan General as a consultant in the 3rd Orthopedic Clinic - Minimally Invasive Surgery.

Klaudianos Dionysios is an Orthopedic Surgeon with private clinics in Haidari and Nikaia and serves as a collaborator at the Peristeri Medical Center. He is a PhD candidate at the Medical School of the National and Kapodistrian University of Athens and holds a degree from the same institution's Medical School. He has specialized in knee arthroscopy, hip and knee arthroplasty, and has significant experience in the management and restoration of fractures. Additionally, he treats cases of osteoporosis as well as knee osteoarthritis using concentrated platelets - growth factors derived from adipose tissue. Finally, the physician has attended numerous international conferences related to sports injuries and their surgical treatment.

Iatrokosmos is a comprehensive primary healthcare unit located in the Ampelokipi area. It consists of the Iatrokosmos Orthopedic Department, staffed by highly trained scientific personnel and equipped with state-of-the-art medical technology. The center's objective is to provide the solution each patient desires, namely diagnosis through to treatment, in a cost-effective, reliable manner and with only the necessary examinations. The goal is to meet the health needs of every family, insured or uninsured, of any age with comprehensive solutions. Their philosophy includes three fundamental principles: friendly service, high-quality examinations, and affordable prices. Finally, always prioritizing patient safety, they assume responsibility for the patient’s health from start to finish, that is, from diagnosis through to treatment.

Dr. Kyrilis Xristos MD, MSc is an Orthopedic Surgeon - Spine Surgeon specializing in spinal surgery, as well as endoscopic spinal surgery, and maintains a private practice in Vrilissia. He was admitted to the Medical School of Aristotle University of Thessaloniki and, after completing his studies and fulfilling his military obligations, he began the general part of his specialty in Orthopedics and Traumatology at the General Surgery Clinic of the General Hospital of Agrinio. Since 2014, he worked as an Orthopedics and Traumatology resident at the Attica General Hospital KAT, in the 1st Orthopedic Clinic, until September 2019. During this period, he participated in numerous surgical procedures and contributed to the operation of all departments of the Clinic. Additionally, he was seconded to the Scoliosis and Spine Department of the General Hospital KAT, where he participated in the diagnosis and management of complex cases, covering the entire spectrum of spinal pathology. During his specialty training, he attended numerous educational conferences and seminars, enhancing his knowledge and experience. Continuing his education, he completed his postgraduate studies program at the National and Kapodistrian University of Athens, focusing on the "Rehabilitation of Spinal Cord and Spinal Cord Injuries." Today, he works as a Scientific Associate at YGEIA Hospital and as a Consultant in the Spine, Scoliosis, and Oncology Department of Metropolitan General Hospital. With his experience and expertise, he is committed to providing high-quality medical care, focusing on pain relief and the restoration of mobility for his patients.