Menelaos Zoulamoglou MD, MSc is a General Surgeon maintaining a private practice in Vrilissia, specializing in modern minimally invasive and oncological surgery. He completed his medical studies at the National and Kapodistrian University of Athens and has undergone extensive postgraduate training through multiple advanced degrees, including surgical oncology and advanced laparoscopic, bariatric, and robotic surgery. Throughout his professional career, he has served at major hospitals in Athens, gaining extensive experience in general and oncological surgery, with years of training in both university and hospital settings, including specialization in surgery. His expertise encompasses a wide range of conditions, such as colorectal surgery, oncologic procedures of the digestive system, as well as liver, pancreas, and breast surgery. His objective is to provide high-quality medical services with an emphasis on patient safety, modern minimally invasive techniques, and individualized surgical care.

Demiri Matina is a Oncologist - Pathologist and maintains a private practice within the Metropolitan Hospital in Cholargos. Her clinical focus encompasses all solid tumors, including gastrointestinal tumors and neuroendocrine tumors. She graduated from the Medical School of the National and Kapodistrian University of Athens (NKUA), completed her Pathology specialty in 1987, and Oncology specialization in 2003. She has gained valuable experience working as a Consultant in Pathology-Oncology Clinics at prominent institutions such as Tzaneio General Hospital of Piraeus and the General Anti-Cancer Oncology Hospital of Athens "Agios Savvas." Since 2023, she has been serving as the Director of the 3rd Oncology Clinic at Metropolitan General Cholargos. Additionally, she is an active member of associations and organizations including the Hellenic Society for Neuroendocrine Tumors, where she serves as President, the Hellenic Society of Medical Oncologists (HSPO), the European Society for Medical Oncology (ESMO), the American Society of Clinical Oncology (ASCO), the European Neuroendocrine Tumor Society e.V. (ENETS), and the North American Neuroendocrine Tumor Society (NANETS). Finally, her significant contributions to research programs and publications were recognized in 2023 when she received an honorary distinction as Scientific Director "for her valuable contribution to patients and fellow physicians of the Clinic" at the 11th Panhellenic Congress "New Drugs in Oncology."

Panagiotakis Emmanouil MD, PhD is a General Surgeon with a private practice in Marousi. He holds a degree from the Medical School of Aristotle University of Thessaloniki and a doctoral degree from the Department of General, Oncological Surgery and Visceral Surgery at the University of Hannover. He specialized at a major Oncology Center in Bremen, Germany (Klinikum Bremen Mitte - Academic Hospital of the University of Gottingen), and has also obtained subspecialty certification in proctology following examinations in Germany. He has worked as an Attending Physician at Klinikum Bremen Mitte, Gesundheit Nord in Germany, and currently serves as an Attending Physician at Iaso General Clinic. He has extensive experience (2011 to 2023) in the management of oncological patients, patients with chronic inflammatory bowel diseases (Crohn’s disease, ulcerative colitis), patients with proctological conditions, as well as patients with benign conditions (e.g., hernias, gallbladder). Finally, the physician is a member of the European Society of Coloproctology.

Dr Liagkos Th Georgios, MD, PhD, is a General Surgeon - Proctologist, graduate of the Medical School of Patras, and has been awarded the distinction of Outstanding Doctorate from the Medical School of the National and Kapodistrian University of Athens. He is the Director of the 2nd Surgical Clinic for Anorectal Diseases at the Lumedica group and a Scientific Collaborating Surgeon - Proctologist at Metropolitan Hospital in Neo Faliro and Therapis in Athens. He maintains private practices in Aigaleo and Lamia. He is a certified member of the American College of Surgeons (ATLS - ACS Committee on Trauma) and an active member of the Hellenic Surgical Society, the Hellenic Society of Endoscopic Surgery & Other Minimally Invasive Techniques, the Hellenic Society of Coloproctology, and the Hellenic Phlebology Society. He has specialized in Surgical Treatment of Anorectal Diseases and Intestinal Surgery at the General State Hospital of Nikaia, and has undergone additional training in Advanced Laparoscopic Surgery and Minimally Invasive Surgery of Abdominal Wall Hernias. Additionally, he is certified in the use of modern optical fiber Laser, radiofrequency (RF), and ultrasound (HAL) techniques in the surgical management of anorectal diseases (coccygeal cyst, hemorrhoids, perianal fistula-abscess, anal fissure, condylomas). Annually, he is a speaker and contributor of presentations at numerous postgraduate seminars and conferences both abroad and in Greece, staying informed primarily on current advances in Proctology and Minimally Invasive Surgery. Since 2017, he has served as a reviewer for the American Surgical Journal & Trauma Cases and Reviews, and in 2023, he announced the first worldwide publication presenting new data on the modern treatment of coccygeal cyst using Laser with the new Infinate Ring fiber.

Dr. Lazaros Lazarou is a General Surgeon, certified in surgical oncology of the colon and rectum, pancreas, stomach, liver, and thyroid gland, as well as in proctology, with specialized expertise in laparoscopic and robotic surgical procedures. He maintains a private medical practice in Volos, Greece. He studied and specialized in Germany, where he pursued a career in Surgery. He completed his residency at the Department of General, Visceral and Transplant Surgery of the University Hospital of Ulm, where in 2007 he obtained his Board Certification in General Surgery and was appointed Consultant Surgeon, while in 2010 he acquired the qualification in Advanced Visceral Surgery. In 2013, he was promoted to Deputy Director, and in 2015 to Associate Director of Surgery, with parallel responsibilities for the development of the 14 Centers of Excellence of the surgical department, including all oncological centers, as well as centers for inflammatory bowel disease, thyroid and parathyroid glands, hernia, and sarcoma. In 2017, he assumed the position of Director of General, Visceral, Thoracic and Transplant Surgery at the Stuttgart Hospital, which is a certified Oncology Cancer Center of the German Cancer Society (DKG) and a Transplant Center with 23 Centers of Excellence. At the same hospital, he also served as Scientific Coordinator and Medical Director, with responsibilities including: coordination of the Visceral Oncology Center (esophagus, stomach, pancreas, liver, colon and rectum, endocrine glands, peritoneal and other metastases, sarcoma), director of the Oncological–Visceral Tumor Board, delegate for the education of medical students at the Center for Surgical Medicine, transfusion officer of the department, coordinator of the research programs of the Visceral Oncology Center, officer responsible for quality assurance of the Department of General, Visceral, Thoracic and Transplant Surgery, as well as member of the committee of the German Cancer Society responsible for the certification of Centers of Excellence in Visceral and Oncological Medicine. Mr. Lazaros Lazarou returned to Greece with his family, aiming to offer his extensive surgical experience and scientific expertise acquired at leading German and European certified centers where he worked. His commitment focuses on personalized treatment based on Greek and international protocols, access to minimally invasive surgery, optimal surgical outcomes, absolute transparency and trust, as well as continuous education and innovation. Following a competitive selection process, he assumed the position of Coordinating Director of Surgery at the Volos Hospital, while simultaneously providing his services at his private practice and in private hospitals. His clinic focuses on minimally invasive surgical techniques (laparoscopic and robotic surgery) and specialized oncological surgery. Particular emphasis is placed on colorectal cancer, pancreatic cancer, as well as the surgical treatment of endocrine glands and proctology. Dr. Lazaros Lazarou is a member of distinguished German and Greek medical societies that play a leading role in his specialty and actively participates in their conferences and scientific activities. He has contributed to the authorship of studies published in prestigious international scientific journals and has delivered numerous lectures and presentations at international conferences.

Voulgaris Sotiris is a General Surgeon with a private practice located in Ilisia. He is a graduate of the Medical School of the University of Ioannina and holds a postgraduate diploma in Minor Pelvic and Perineal Surgery from the Medical School of the University of Thessaly. Additionally, he has completed postgraduate studies in Surgical Oncology at the Medical School of the National and Kapodistrian University of Athens. He is currently working as a Surgeon - Consultant at the Athens Medical Center. His practice encompasses the full spectrum of general surgery cases, with a specialization in laparoscopic surgery, colorectal surgery, and hernia surgery.

Thomopoulou Konstantina MD, MSc, PhD is an Oncologist and holds a PhD from the Medical School of the University of Crete, with a specialization in Cancer Immunology. She maintains a private practice in Ampelokipoi. She studied at the Medical School of Democritus University of Thrace and holds a master's degree in Lung Cancer from the National and Kapodistrian University of Athens. She specialized in the United Kingdom, specifically in Medical Oncology at the Gynecologic and Breast Cancer Department of the Beatson Cancer Center, followed by training in Hematology/Oncology at Broomfield Hospital in Middle Essex. She completed her specialty in Medical Oncology at the University General Hospital of Heraklion, where she participated in both clinical and laboratory activities. Additionally, she obtained certification from the European Society for Medical Oncology (ESMO) after passing the pan-European examinations. Furthermore, in 2024, she received certification in Breast Cancer (Certificate of Competence in Breast Cancer) from the University of Ulm, Germany, in collaboration with the European School of Oncology. Finally, she possesses extensive clinical experience and, alongside her private practice, is affiliated with HYGEIA Hospital and MITERA Hospital.

Kyziridis Dimitrios is a General Surgeon who maintains a private practice in Thessaloniki. He holds a PhD from the Medical School of Aristotle University of Thessaloniki (A.U.Th.). Additionally, he is a Diplomate of the European Society of Surgical Oncology for the management of peritoneal malignancy and a collaborator of the peritoneal malignancy program at the Euromedica Cyan Cross clinic, while also specializing in the treatment of anal diseases. From September 2023 to October 2024, he served as a Scientific Collaborator of the 4th University Surgical Clinic of A.U.Th. at the General Hospital of Thessaloniki "G. Papanikolaou," actively participating in surgeries, on-call duties, and the clinic's teaching activities. He has participated in numerous seminars and conferences both in Greece and abroad and is the author of numerous announcements and papers in Greek and international journals.