Otolaryngologists (ENT) for Nasal Endoscopy in Attica

Dr. Niafas Konstantinos is an Otolaryngologist who operates a private practice in Oropos. He holds a medical degree from a Medical School in Romania and specialized in Otolaryngology. He has extensive experience in surgical cases involving both classical and aesthetic otolaryngology. Additionally, Dr. Niafas collaborates with Bioclinic Athens, Athens Clinic, Karras Clinic, and Psychiko Medical Center.

Stauropoulos Nikolaos is an Otolaryngologist Surgeon who maintains a private practice with extensive experience in the Nikaia area. He graduated from the Medical School of the University of Rome "La Sapienza" and specialized at the General Hospital of Nikaia - Piraeus. He received further training at the University of Brescia in Italy in endoscopic surgery and at the Laser Phoniatrics Center for voice, speech, and swallowing disorders, while simultaneously commencing a Doctoral Thesis at the University of Ioannina. His practice offers all clinical otolaryngology services, including endoscopic examination, comprehensive audiological assessment, tympanometry, audiometry, and dizziness evaluation. Furthermore, Dr. Stauropoulos Nikolaos specializes in ear surgery, endoscopic nasal/paranasal sinus surgery, neck and salivary gland surgery, laser laryngeal surgery, pediatric audiology, as well as pediatric surgery. Finally, he regularly participates in further training, conferences, and seminars aimed at lifelong education, continuous updating, and ongoing improvement both in his clinical practice and surgical skills.

Latzonis Ioannis is an Otolaryngologist Surgeon and has maintained a private practice in Ilion since 2024. He graduated from the Medical School of Aristotle University of Thessaloniki.

In 2020, he completed his six-year specialization in Otolaryngology at the 2nd University ENT Clinic of "Attikon" Hospital and in the Pediatric ENT Clinic of the Children's Hospital of Patras "Karamandaneio".

After obtaining his specialty title, he worked for two years as a Senior Registrar at the ENT Clinic of Kalamata General Hospital, gaining extensive experience in the diagnosis as well as the conservative and surgical management of the full spectrum of ENT pathology.

In 2022, he successfully participated in the written and oral examinations for the European Specialty in Otolaryngology - Head and Neck Surgery in Vienna, from which he received the title "FEBORL - HNS" (Fellow of the European Board in Otorhinolaryngology - Head and Neck Surgery).

Since 2023, he has been affiliated with the private hospitals Iaso (General Clinic - Pediatrics) and Mitera (3rd Pediatric ENT Clinic), while since June 2024 he has also been a Consultant at the ENT Clinic of Iaso.

Finally, he is fluent in English and has numerous participations and presentations/posters at Greek and European conferences, numerous publications in international medical journals and collective volumes, as well as a wealth of work and presentations as part of the training he provided to junior ENT specialists at the University Hospital "Attikon" and Kalamata General Hospital clinics.

Panagiotis Mallis is an Otolaryngologist with a private practice in Sepolia. He holds a medical degree from the University of Ancona in Italy. He specialized in General Surgery at the Naval Hospital of Athens and subsequently specialized in Otolaryngology at the General Hospital of Athens Laiko. He also served as a Medical Officer - Reserve Ensign both at the Naval Academy and on a gunboat of the Hellenic Navy. In recent years, he has collaborated with and performed surgical procedures at the Athens Clinic, KAPPA Clinic, and Doctors Hospital. He has particular expertise in the evaluation of snoring and sleep disorders in children and adults, manages septal and snoring conditions, and provides services including endoscopic examination, ear cleaning, comprehensive audiological assessment, nasal septum examination, and tympanometry. He has participated in numerous conferences in Greece and abroad and has published articles in scientific journals. Finally, Dr. Mallis is a member of the Hellenic Society of Otolaryngology, Head and Neck Surgery, the Hellenic Medical Audiology Neurootology Society, the Hellenic Society of Otolaryngologic Allergy, Immunology and Sleep Disorders, and the Hellenic Rhinologic Society.

Η Δαμιανίδου Βασιλική MD, MSc είναι Ωτορινολαρυγγολόγος Παίδων και Ενηλίκων - Χειρουργός Κεφαλής και Τραχήλου και διατηρεί ιδιωτικό ιατρείο στη Νέα Ερυθραία.

Επιπλέον είναι Επιμελήτρια Β στο Γενικό Νοσοκομείο Παίδων " Παναγιώτης και Αγλαία Κυριακού".

Είναι πτυχιούχος της Ιατρικής Σχολής του Εθνικού και Καποδιστριακού Πανεπιστήμιου Αθηνών. Ολοκλήρωσε την ειδικότητά της στην Ωτορινολαρυγγολογία - Χειρουργική Κεφαλής και Τραχήλου στην Ά Πανεπιστημιακή Ωτορινολαρυγγολογική Κλινική του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών στο Γενικό Νοσοκομείο Αθηνών "Ιπποκράτειο". Είναι κάτοχος Μεταπτυχιακού Τίτλου στις Παθήσεις Σιελογόνων Αδένων από το Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης. Στα πλαίσια της ειδικότητας εκπαιδεύτηκε ακόμη στη Γενική Χειρουργική στο Νοσοκομείο Θείας Πρόνοιας "Παμμακάριστος", στη Παιδο - Ωτορινολαρυγγολογία στο Νοσοκομείο Παίδων "Η Αγία Σοφία". Συνέχισε την εκπαίδευσή της στη Νευροχειρουργική στο Γενικό Νοσοκομείο Αθηνών "Γ. Γεννηματάς" και στη Πλαστική Χειρουργική στο Ναυτικό Νοσοκομείο Αθηνών. Επιπρόσθετα στα πλαίσια του προπτυχιακού της, εκπαιδεύτηκε στη Παιδοχειρουργική στο αντίστοιχο Τμήμα του " Stadtisches Klinikum" της Καρλσρούης, στη Γερμανία. Αξίζει να αναφερθεί το διδακτικό έργο της Ιατρού στα Μαθήματα Φοιτητών της Ά Πανεπιστημιακής Ωτορινολαρυγγολογικής Κλινικής του Γενικού Νοσοκομείου Αθηνών "Ιπποκράτειο".

Είναι μέλος του Ιατρικού Συλλόγου Αθηνών, του Πανελλήνιου Ιατρικού Συλλόγου και της ΩΡΛ Εταιρείας Χειρουργικής Κεφαλής και Τραχήλου Αθηνών. Τέλος, στα πλαίσια της συνεχούς επιμόρφωσης, φροντίζει να παρακολουθεί τις τρέχουσες εξελίξεις μέσω συμμετοχής σε σεμινάρια και ιατρικά συνέδρια, ενώ έχει βραβευτεί πολλάκις για τις προφορικές της ανακοινώσεις στο Πανελλήνιο Ωτορινολαρυγγολογικό Συνέδριο και στο Πανελλήνιο Συνέδριο Ωτολογίας, Ακοολογίας, Νευροωτολογίας και Σεμινάριο Παιδιατρικής Ωτορινολαρυγγολογίας και Ακοολογίας.

Ο Κάτσης Άρντι είναι Ωτορινολαρυγγολόγος (ΩΡΛ) και διατηρεί ιδιωτικό ιατρείο στα Πετράλωνα. Έχει αποκτήσει ειδικότητα το 2009 και διαθέτει σημαντική κλινική και χειρουργική εμπειρία στην αντιμετώπιση παθήσεων κεφαλής και τραχήλου σε παιδιά και ενήλικες. Διετέλεσε Επιμελητής Β’ ΩΡΛ για δύο έτη στο Γενικό Νοσοκομείο Ιωαννίνων «Χατζηκώστα», όπου απέκτησε πολύτιμη εμπειρία στη διαχείριση νοσηλευόμενων και επειγόντων περιστατικών. Στη συνέχεια, ανέπτυξε δραστηριότητα στον ιδιωτικό τομέα, διατηρώντας ιδιωτικό ιατρείο και παρέχοντας ολοκληρωμένες διαγνωστικές και θεραπευτικές υπηρεσίες με έμφαση στην εξατομικευμένη φροντίδα του ασθενούς. Είναι συνεργάτης του Metropolitan Hospital, συμμετέχοντας ενεργά σε χειρουργικά περιστατικά και στην αντιμετώπιση σύνθετων ΩΡΛ παθήσεων. Διαθέτει εξειδίκευση στη διαχείριση ροχαλητού και υπνικής άπνοιας, ρινικής απόφραξης, ιλίγγου και διαταραχών φωνής, εφαρμόζοντας σύγχρονες ενδοσκοπικές και ακοολογικές μεθόδους.

Mpakavos Apostolos is an Otolaryngologist maintaining a private practice in Ilioupoli. He graduated from the Medical School of Aristotle University of Thessaloniki and the Military School of Officers of Corps (S.S.A.S.), where he was commissioned as a Medical Officer of the Hellenic Navy. Subsequently, he served as the Health Director of the Frigate Limnos and as Chief Medical Officer in the international SNMG2 force. Additionally, he trained at the Naval Hospital of Crete, the Naval Hospital of Athens, and the General Hospital "Korgialeneio - Benakeio" of the Hellenic Red Cross. He also received training in middle ear surgery at Addenbrooke's Hospital in Cambridge, United Kingdom, and in Functional Endoscopic Sinus Surgery in Bern, Switzerland. Furthermore, he has held the position of Consultant at the ENT Clinic of the Naval Hospital of Athens and has worked as an Instructor in Postgraduate ENT courses conducted at the 1st and 2nd University Clinics of the National and Kapodistrian University of Athens. Finally, he is specialized in Endoscopic Surgery of the Nose, Paranasal Sinuses & Functional Rhinoplasty, Otology - Neurotology, and Rhinology and Nasal Surgery.

Gkortsali Athanasia is an Otolaryngologist with a private practice in Kolonaki. She is a graduate of the Medical School of Democritus University of Thrace. She specialized in Otolaryngology - Head and Neck Surgery at the ENT Clinic of the Naval Hospital of Athens, where she was trained in a large number of cases and surgical procedures. She further specialized in pediatric ENT at the General Children's Hospital of Athens "Agia Sofia." She has participated in specialized training concerning the management of nasal diseases (FESS - Endoscopic Sinus Surgery) and surgical ear conditions. She has particular expertise in tonsillectomy and adenoidectomy (ear tubes), rhinoplasty and nasal septum surgery (septoplasty), as well as endoscopic sinus surgery (FESS). In her private practice, she manages otolaryngological cases in both children and adults, performing comprehensive endoscopic and audiological evaluations. Finally, she has participated as a speaker and attendee in numerous seminars and conferences in her specialty and serves as an external collaborating surgeon at the ENT Clinic of Athens and at IASO Children’s Hospital.

Koutsourelakis Ioannis MD, MSc, PhD is an Otolaryngologist Surgeon (ENT) who maintains a private practice in Ampelokipoi. He holds a Doctorate with a dissertation titled "Nasal obstruction and obstructive sleep apnea syndrome" and a Master's degree in "Minimally invasive surgery, Robotic surgery, telesurgery" from the National and Kapodistrian University of Athens, where he also completed his medical degree. He has specialized in the treatment of snoring and apnea in the Netherlands and the United States (Johns Hopkins Medical University, Weill Cornell Medical University). He is the first ENT in Greece to implement Inspire therapy through hypoglossal nerve stimulation for the treatment of sleep apnea. Additionally, he has a significant body of published work and numerous scientific publications on rhinology, rhinoplasty, snoring, and sleep apnea. Finally, the physician has received distinctions for his research contributions and postdoctoral research.

Magklaras Ilias is an Otolaryngologist and maintains a private practice in Melissia. He holds a medical degree from the Medical School of the National and Kapodistrian University of Athens. The doctor specialized in Otolaryngology at Tzaneio Hospital in Piraeus, at Pammakaristos Hospital, and in Pediatric Surgery at Nikaia Hospital. Finally, he serves as a Scientific Collaborator at MITERA Hospital and as a Consultant at HYGEIA Hospital.

Potamianos Spyros is an Otolaryngologist and operates a private practice in the Gyzi area. He graduated from the Medical School of the National and Kapodistrian University of Athens, specializing in Otolaryngology at the General Hospital of Athens "Hippokratio" and the Athens Children's General Hospital "Panagiotis and Aglaia Kyriakou." His training includes advanced education in Head and Neck Surgical Oncology both at the 1st University Otolaryngology Clinic and through the Global Online Fellowship program of the International Federation of Head and Neck Oncologic Societies. Concurrently, he serves as a Senior Registrar (Epimeletis A’) in the National Health System (NHS) at the 3rd Otolaryngology Clinic of "Sotiria" Hospital, and has previously served as an Assistant Registrar (Epikourikos Epimeletis B’) at the 1st University Otolaryngology Clinic of "Hippokratio" Hospital and in the Otolaryngology Clinic of the General Hospital of Athens "G. Gennimatas." He has actively participated in numerous clinical and research projects, with publications in prestigious international scientific journals such as The Lancet, Anaesthesia, BMJ Case Reports, and Cells. Finally, the physician is a member of the Hellenic Head and Neck Cancer Society, the Panhellenic Society of Head and Neck Otolaryngologic Surgery, the Rhinologic Society of Facial Plastic Surgery, and the Otolaryngology Society of Athens, where he has been serving as Treasurer since 2022.

Avramidis Vasilis is an Otolaryngologist and maintains a private practice in Kolonaki. He holds a PhD from the Medical School of Democritus University of Thrace and is the Director of the Otolaryngology Clinic at the Athens Medical Center. He has also been an Associate at the "Mitera" Hospital and the Euroclinic Athens. He possesses a postgraduate degree in Oncology from the Piraeus Anti-Cancer Hospital "Metaxa." Practicing medicine since 1986, he has performed a large number of surgical procedures with absolute success. He is specialized in laryngology, pediatric otolaryngology, as well as head and neck surgery. Finally, at his clinic, always guided by his dedication to patient care, he provides treatment for a wide range of conditions.

Panagopoulou Georgia is an Otolaryngologist and maintains a private practice in Melissia. She holds a PhD from the Democritus University of Thrace and is a graduate of the Medical School of the National and Kapodistrian University of Athens. She specialized in Pediatric Otolaryngology and Adult Otolaryngology at the General Children's Hospital of Penteli and at the General Hospital of Athens Korgialenio - Benakeio Hellenic Red Cross. The physician is a Consulting Otolaryngologist at several private hospitals and multidisciplinary clinics, as well as with Doctors SOS. Additionally, she has participated as both an attendee and a speaker at numerous conferences aimed at continuous education in her field of specialization.

Xalastras Thomas is an Otolaryngologist and maintains a private practice in Keratsini. He is a graduate of the Medical School and trained in General Surgery at the General Hospital "Asklipieio" of Voula. He completed his rural service in Ioannina and subsequently served his military duty as a medical private in the infantry. Thereafter, he continued his specialization in Otolaryngology at the General Hospital of Athens "G. Gennimatas" and obtained the title of Surgeon Otolaryngologist in 2007. Additionally, he received further training in Neuro-otology at the University College London Hospital, Department of Neuro-Otology in London, as well as in Rhinoplasty and Facial Plastic Surgery at the Universitätsklinik und Ambulanz für Hals Nasen Ohren Heilkunde in Ulm, Germany. Furthermore, he has collaborated with major private hospitals and since 2010 holds a PhD from the Medical School of the National and Kapodistrian University of Athens. He has also attended numerous seminars in Greece and abroad focusing on otolaryngology, particularly in vertigo, rhinoplasty, laser surgery, and functional endoscopic surgery. He has published scientific papers in international and Greek otolaryngology journals and has presented a significant number of scientific papers at conferences both in Greece and internationally. At his practice, he manages cases encompassing the entire spectrum of otolaryngology, with notable specialization in otology/neuro-otology, rhinology and nasal surgery, and pediatric otolaryngology. He performs the full range of otolaryngological and head and neck surgical procedures.

Ioannis Petrakos is an Otolaryngologist and maintains a private practice in Piraeus. He holds a Doctorate from the National and Kapodistrian University of Athens and is a graduate of the Medical School. He serves as a Consultant at the 2nd ENT Clinic of the Athens Pediatric Center, and has previously worked at major hospitals in Attica such as the Athens Naval Hospital, the Specialized Anticancer Hospital of Piraeus "Metaxa," the General Children's Hospital of Athens "P. & A. Kyriakou," and the General Hospital of Athens "Evangelismos." Finally, the physician offers a wide range of services at his practice and is a member of the Athens Medical Association and the Hellenic Society of Otolaryngology Head and Neck Surgery.

Papathanasiou Antonios is an Otolaryngologist with a private practice in Chalandri. He graduated from the Medical Department of the Military Officers' School and trained at major hospitals in Athens, including the 401 General Military Hospital of Athens, the General Children's Hospital "Agia Sofia," and the General Hospital of Athens "Evangelismos." He has served as Director of the ENT Clinic at the 412 Military Hospital of Xanthi and as Consultant at the ENT Clinic of the 401 General Military Hospital of Athens. His extensive professional experience at major hospitals enables him to offer a wide range of services at his private practice, always tailored to the needs of each patient.

Maria Manolaraki is an Otolaryngologist (ENT Surgeon) and maintains a private medical practice in Glyfada.

She has experience in the diagnosis and treatment of ear, nose, and throat conditions in adults and children. She provides comprehensive care with an emphasis on an individualized approach for each patient and the use of modern medical equipment.

Her clinic offers complete ENT examinations, including nasal, pharyngeal, and laryngeal endoscopy; hearing assessment; ear cleaning; and treatment of sinusitis, rhinitis, pharyngitis, snoring, and vertigo.

She also undertakes surgical cases, specializing in nasal surgery, rhinoplasty, and endoscopic surgery of the nose and paranasal sinuses.

Ο Δρ Δημήτρης Κοτζαμπασάκης, MD, PhD, MSc είναι Χειρουργός Ωτορινολαρυγγολόγος με ιδιαίτερη εξειδίκευση στη ρινολογία, την ενδοσκοπική χειρουργική ρινός και τη λειτουργική και αισθητική ρινοπλαστική.

Είναι αριστούχος απόφοιτος της Ιατρικής Σχολής του Πανεπιστημίου Semmelweis και αριστούχος διδάκτωρ της Ιατρικής Σχολής του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών. Το 2017 ολοκλήρωσε με βαθμό Άριστα τη διδακτορική του διατριβή με τίτλο «Συμβολή στη μελέτη της ποιότητας ζωής ασθενών που υποβλήθηκαν σε ρινοπλαστική», η οποία διερεύνησε την επίδραση της ρινοπλαστικής στη λειτουργικότητα, την ψυχολογία και τη συνολική ποιότητα ζωής των ασθενών.

Το διάστημα 09/2025– 02/2026 συμμετείχε στο διδακτικό έργο του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών ως εντεταλμένος διδάσκων, διδάσκοντας το μάθημα «Νευροηθική και σύγχρονη Ιατρική πράξη», ενώ συνεχίζει να συμμετέχει ενεργά σε επιστημονικές δραστηριότητες και συνέδρια.

Η ιατρική του εκπαίδευση ξεκίνησε με ειδίκευση στη Γενική Χειρουργική σε μεγάλα νοσοκομεία της Αθήνας και στη συνέχεια συνέχισε την ειδικότητά του στην Ωτορινολαρυγγολογία ενηλίκων και παίδων, αποκτώντας εμπειρία στη διάγνωση και αντιμετώπιση επειγόντων και χρόνιων ΩΡΛ παθήσεων. Σημαντικό μέρος της εκπαίδευσής του πραγματοποιήθηκε στο Κωνσταντοπούλειο Γενικό Νοσοκομείο Αθηνών και στο Γενικό Νοσοκομείο Παίδων Πεντέλης, όπου εξειδικεύτηκε στη διαχείριση ΩΡΛ περιστατικών παιδιών.

Παράλληλα ανέπτυξε ιδιαίτερο ενδιαφέρον για την πλαστική χειρουργική του προσώπου και τη ρινοπλαστική. Στο πλαίσιο αυτό συνεργάστηκε με τον πλαστικό χειρουργό Σ. Κοτζαμπασάκης, αποκτώντας σημαντική εμπειρία στις τεχνικές λειτουργικής και αισθητικής αποκατάστασης της ρινός.

Στη συνέχεια εξειδικεύτηκε στη ρινολογία και την ενδοσκοπική χειρουργική των παραρρινίων κόλπων, παρακολουθώντας σειρά μετεκπαιδευτικών σεμιναρίων και χειρουργικών workshops στην Ελλάδα, στην Ευρώπη και στις Ηνωμένες Πολιτείες. Έχει συμμετάσχει σε περισσότερα από 34 μετεκπαιδευτικά προγράμματα, παρακολουθώντας συνεχώς τις εξελίξεις της ειδικότητάς του.

Από το 2004 έως σήμερα έχει πραγματοποιήσει περισσότερες από 3.500 ρινολογικές επεμβάσεις και επεμβάσεις λειτουργικής ρινοπλαστικής, με έμφαση στη βελτίωση της ρινικής αναπνοής και της αισθητικής αρμονίας του προσώπου.

Το 2021 ολοκλήρωσε μεταπτυχιακές σπουδές στη Διοίκηση Μονάδων Υγείας στο Ελληνικό Ανοικτό Πανεπιστήμιο. Παράλληλα έχει αναπτύξει επιστημονική δραστηριότητα με δημοσιεύσεις σε ελληνικά και διεθνή περιοδικά και ανακοινώσεις σε συνέδρια.

Είναι συγγραφέας στο επιστημονικό βιβλίο «Ερωτήσεις – Απαντήσεις Ρινολογίας», ενώ έχει συμμετάσχει σε περισσότερα από 30 εθνικά και διεθνή επιστημονικά συνέδρια.

Είναι μέλος του Ιατρικού Συλλόγου Αθηνών, της European Rhinologic Society, της European Rhinoplasty Society και της Πανελλήνιας Εταιρείας Ωτορινολαρυγγολογίας – Χειρουργικής Κεφαλής και Τραχήλου.

Διαθέτει άδεια άσκησης ιατρικού επαγγέλματος στην Ελλάδα, στο Ηνωμένο Βασίλειο και στη Νορβηγία.

Σήμερα διατηρεί ιδιωτικά ιατρεία σε Κηφισιά και Κρυονέρι και πραγματοποιεί χειρουργικές επεμβάσεις σε μεγάλα ιδιωτικά νοσοκομεία, όπως το Ιατρικό Αθηνών, το ΜΗΤΕΡΑ και το Διαβαλκανικό Θεσσαλονίκης, εφαρμόζοντας σύγχρονες τεχνικές και εξατομικευμένες θεραπευτικές προσεγγίσεις για κάθε ασθενή.

Dr. Ioannis Kyriazis, MD, PhD, is an Otolaryngologist Surgeon who maintains a private practice in Pangrati. He holds a doctorate from the National and Kapodistrian University of Athens with extensive experience and specialization in pediatric ENT pathology, as well as in the evaluation and treatment of vertigo, tinnitus, and hearing loss. His investigative and therapeutic focus also includes laryngeal pathology (voice and swallowing disorders) and nasal pathology (allergic and non-allergic rhinitis, deviated septum), anatomical structures which are painlessly examined in the clinic using modern equipment. In addition to his private practice, Dr. Kyriazis collaborates with Hygeia Hospital, the Athenian Mediclinic General Clinic, ORL Athens Clinic, and Doctors Hospital.

Roumeliotis V Dimitris MD, MSc Aud Neurot, FEBORL-HNS is an Otolaryngologist who maintains a private practice in Neo Irakleio. He holds a degree in Medicine from the School of Health Sciences at Aristotle University of Thessaloniki. He is a head and neck surgeon, a member, and diploma holder of the European Board of Otorhinolaryngology - Head and Neck Surgery following pan-European examinations (Fellow of the European Board of Otorhinolaryngology - Head and Neck Surgery). He is specialized in Otology / Neurotology (holding a postgraduate degree in Audiology - Neurotology, MSc Audiology and Neurotology from the Medical School of Athens), rhinology - rhinologic surgery, pediatric otolaryngology, and has for many years practiced laser surgery for benign and malignant diseases of the mouth, oropharynx, and larynx. In his modern clinic, all necessary diagnostic examinations can be performed, such as endoscopic examination of the nose - nasopharynx - orifices of the Eustachian tubes, pharynx, and larynx, with recording of these examinations on DVD; comprehensive audiological assessment including audiogram, tympanogram, and identification of acoustic reflexes; as well as investigation and management of labyrinth disorders. Otolaryngological problems requiring surgical treatment are addressed using the most advanced methods in affiliated clinics. The physician actively participates in all professional conferences related to his specialty both in Greece and abroad, and has numerous publications and oral presentations in both Greek and international scientific journals and conferences to his credit.