
Dr. Sefa Guliter
Medical Gastroenterologist
- Dr. Sefa Guliter is a renowned Gastroenterologist with extensive 22+ years of experience.
- His expertise lies in Cancer, Irritable Bowel Syndrome (IBS), Celiac Disease, Inflammatory Bowel Disease, Gallbladder Disease, GERD (Heartburn, Acid Reflux), endoscopic procedures, etc.
- Dr. Sefa has completed his graduation from Ankara University School of Medicine, followed by post-graduation from the reputed SSK Ankara Hospital, Istanbul.
- Until now, he has worked in some of the premier institutes such as SB Etimesgut State Hospital, Kirklareli University, Gazi University School of Medicine, Minasera Aldan Hospital.
- Under his credit, there are both national and international publications and he is actively invited as a guest speaker in scientific meetings, CDE's and worldwide conferences to talk about Irritable Bowel Syndrome (IBS).
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- Dr. Sefa Guliter is a renowned Gastroenterologist with extensive 22+ years of experience.
- His expertise lies in Cancer, Irritable Bowel Syndrome (IBS), Celiac Disease, Inflammatory Bowel Disease, Gallbladder Disease, GERD (Heartburn, Acid Reflux), endoscopic procedures, etc.
- Dr. Sefa has completed his graduation from Ankara University School of Medicine, followed by post-graduation from the reputed SSK Ankara Hospital, Istanbul.
- Until now, he has worked in some of the premier institutes such as SB Etimesgut State Hospital, Kirklareli University, Gazi University School of Medicine, Minasera Aldan Hospital.
- Under his credit, there are both national and international publications and he is actively invited as a guest speaker in scientific meetings, CDE's and worldwide conferences to talk about Irritable Bowel Syndrome (IBS).

Dr. Kasim Kazbay
Medical Gastroenterologist
- Dr. Kasım Kazbay is a gastroenterologist with 20+ years of experience.
- He was granted the TUBITAK Medical Investigation Award in 1986 and received Sedat Simavi Medicine Award in 1995.
- He has conducted various investigations with TUBITAK NATO Overseas Doctorate Scholarship.
- Dr. Kasım is a member of the American Gastroenterological Association.
- He is a holder of the Gastroenterology Certificate of American Internal Medicine Committee.
- His clinical interests include treating stomach diseases, diseases of the esophagus and intestines, diseases of liver and pancreas, endoscopy, Inflammatory Bowel Diseases and more.
- He graduated from Ege University, Bornova in 1986, post-graduated in immunology from McGill University, Canada in 1989, a doctorate in immunology from Mount Sinai, Turkey in 1993, residency in internal medicine from New York University, New York in 1996 and fellowship in Gastroenterology from South Carolina Medical University, Charleston in 1999.
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- Dr. Kasım Kazbay is a gastroenterologist with 20+ years of experience.
- He was granted the TUBITAK Medical Investigation Award in 1986 and received Sedat Simavi Medicine Award in 1995.
- He has conducted various investigations with TUBITAK NATO Overseas Doctorate Scholarship.
- Dr. Kasım is a member of the American Gastroenterological Association.
- He is a holder of the Gastroenterology Certificate of American Internal Medicine Committee.
- His clinical interests include treating stomach diseases, diseases of the esophagus and intestines, diseases of liver and pancreas, endoscopy, Inflammatory Bowel Diseases and more.
- He graduated from Ege University, Bornova in 1986, post-graduated in immunology from McGill University, Canada in 1989, a doctorate in immunology from Mount Sinai, Turkey in 1993, residency in internal medicine from New York University, New York in 1996 and fellowship in Gastroenterology from South Carolina Medical University, Charleston in 1999.

- Prof. Ibrahim Ertugrul is a Surgical Gastroenterologist with over 25 years of experience.
- His expertise lies in performing liver transplants, gastroscopies, endoscopic surgeries, liver biopsies, and the treatment of liver diseases.
- He did his medical education at Istanbul University.
- He pursued specialization from Ankara Yuksel Specialization Training and Research Hospital.
- He has professional membership in the Turkish Gastroenterology Association, Turkish Liver Research Association, and Gastrointestinal Endoscopy Association.
- He holds several publications credited to his name.
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- Prof. Ibrahim Ertugrul is a Surgical Gastroenterologist with over 25 years of experience.
- His expertise lies in performing liver transplants, gastroscopies, endoscopic surgeries, liver biopsies, and the treatment of liver diseases.
- He did his medical education at Istanbul University.
- He pursued specialization from Ankara Yuksel Specialization Training and Research Hospital.
- He has professional membership in the Turkish Gastroenterology Association, Turkish Liver Research Association, and Gastrointestinal Endoscopy Association.
- He holds several publications credited to his name.

- Dr. Fatih Agalar is a reputable Istanbul-based Surgical Oncologist with an experience of more than 26 years.
- He is a member of the European Association of Coloproctology (ESCP), European Society of Breast Cancer Specialists (EUSOMA), Turkish Surgical Association Education Qualification Board Member (2008-2012), Turkish Surgical Association Board Member (2010-), Turkish Colon and Rectum Diseases Association, and Turkish Internal and Surgical Intensive Care Association Education Qualification Board Member (2012-)
- He graduated from Ankara University Faculty of Medicine in 1986 and after completing his General Surgery Specialization Training at Hacettepe University Faculty of Medicine between 1988-1994, he worked at the same institution until 1998.
- He also has a Fellowship of the American College of Surgeons, and Fellow of European Board of Surgery - visceral section (honorary member).
- He has expertise in Cancer Surgery, Breast Cancer Surgery, Thyroid Surgery, Endocrine Organ Cancer Surgery, Robotic and Advanced Laparoscopic Surgery, Colon Rectum and Anal Region Diseases and Surgery, Stomach and Pharynx Surgery, Soft Tissue Sarcomas Surgery, Hot Chemotherapy & Cytoreduction, Hepatobiliary Surgery (Pancreas, gall bladder, biliary tract & liver surgery), etc.
- Dr. Agalar has more than 80 National papers, 35 International papers, 55 National articles, 57 International articles (Access to PubMed), 17 Book chapters, 2 National books, 3 Book editor, and 4 national and 2 international research awards.
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- Dr. Fatih Agalar is a reputable Istanbul-based Surgical Oncologist with an experience of more than 26 years.
- He is a member of the European Association of Coloproctology (ESCP), European Society of Breast Cancer Specialists (EUSOMA), Turkish Surgical Association Education Qualification Board Member (2008-2012), Turkish Surgical Association Board Member (2010-), Turkish Colon and Rectum Diseases Association, and Turkish Internal and Surgical Intensive Care Association Education Qualification Board Member (2012-)
- He graduated from Ankara University Faculty of Medicine in 1986 and after completing his General Surgery Specialization Training at Hacettepe University Faculty of Medicine between 1988-1994, he worked at the same institution until 1998.
- He also has a Fellowship of the American College of Surgeons, and Fellow of European Board of Surgery - visceral section (honorary member).
- He has expertise in Cancer Surgery, Breast Cancer Surgery, Thyroid Surgery, Endocrine Organ Cancer Surgery, Robotic and Advanced Laparoscopic Surgery, Colon Rectum and Anal Region Diseases and Surgery, Stomach and Pharynx Surgery, Soft Tissue Sarcomas Surgery, Hot Chemotherapy & Cytoreduction, Hepatobiliary Surgery (Pancreas, gall bladder, biliary tract & liver surgery), etc.
- Dr. Agalar has more than 80 National papers, 35 International papers, 55 National articles, 57 International articles (Access to PubMed), 17 Book chapters, 2 National books, 3 Book editor, and 4 national and 2 international research awards.
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- Prof. Dr. Sinan Yol is a Surgical Gastroenterologist with over 20 years of experience.
- He deals with the surgery of digestive system diseases and has performed many gastric, esophagus, large intestine, pancreas, liver, and gallbladder surgeries.
- In addition to cancer surgery, he performs successful treatments for many diseases, such as obesity, gastric reflux, and operations for gallstones.
- He completed his MBBS from Hacettepe University and completed a specialty in Gastrointestinal surgery in 2001.
- He has given speeches as a guest in both domestic and international congresses and meetings and his essays have been published in international journals.
- Dr. Sinan is an active member of the Turkish Medical Association, Istanbul Chamber of Medicine, Turkish Surgical Association, Gastroenterological Surgery Society, Turkish Hepato-Pancreato-Biliary Surgery Association, Society of Gastrointestinal Endoscopy, etc.
- He has worked and received experience in the United States, Japan, and Australia for a long time.
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- Prof. Dr. Sinan Yol is a Surgical Gastroenterologist with over 20 years of experience.
- He deals with the surgery of digestive system diseases and has performed many gastric, esophagus, large intestine, pancreas, liver, and gallbladder surgeries.
- In addition to cancer surgery, he performs successful treatments for many diseases, such as obesity, gastric reflux, and operations for gallstones.
- He completed his MBBS from Hacettepe University and completed a specialty in Gastrointestinal surgery in 2001.
- He has given speeches as a guest in both domestic and international congresses and meetings and his essays have been published in international journals.
- Dr. Sinan is an active member of the Turkish Medical Association, Istanbul Chamber of Medicine, Turkish Surgical Association, Gastroenterological Surgery Society, Turkish Hepato-Pancreato-Biliary Surgery Association, Society of Gastrointestinal Endoscopy, etc.
- He has worked and received experience in the United States, Japan, and Australia for a long time.

Dr. Tarik Zafer Nursal
Obesity and Bariatric Surgeon
- Dr. Tarik Zafer Nursal is a leading and experienced General Surgeon with +21 years of experience in the field of general surgery.
- He holds professional memberships of the Turkish Association of Parenteral and Enteral Nutrition, the European Society of Endoscopic Surgery, the Turkish Surgery Association, the Hernia Association and the Çukurova Surgery Association.
- Dr. Nursal completed his MBBS in 1993 from the Hacettepe University Faculty of Medicine. After a year's internship, he earned his general surgery specialisation in 1999. In 2011, he earned his Associate Degree from Andalou University Open Education Faculty Health Institutions Management.
- Dr. Nursal is a renowned general surgeon with expertise in performing surgeries of the hernia/breast and obesity surgeries. He has extensive experience in performing advanced laparoscopic surgeries such as, gastric fundoplication, achalasia, adrenalectomy, splenectomy and colon surgeries. He also surgically treats, gall bladder stones, thyroid, goitre, cancers of the stomach/colon/breast/rectum and rectal tumours, rect prolapse and oncoplasty procedures.
- He is also experienced in attending to emergency cases, working in internal medicine and surgical ICUs.
- Dr. Nursal has co-authored several research papers for leading journals.
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- Dr. Tarik Zafer Nursal is a leading and experienced General Surgeon with +21 years of experience in the field of general surgery.
- He holds professional memberships of the Turkish Association of Parenteral and Enteral Nutrition, the European Society of Endoscopic Surgery, the Turkish Surgery Association, the Hernia Association and the Çukurova Surgery Association.
- Dr. Nursal completed his MBBS in 1993 from the Hacettepe University Faculty of Medicine. After a year's internship, he earned his general surgery specialisation in 1999. In 2011, he earned his Associate Degree from Andalou University Open Education Faculty Health Institutions Management.
- Dr. Nursal is a renowned general surgeon with expertise in performing surgeries of the hernia/breast and obesity surgeries. He has extensive experience in performing advanced laparoscopic surgeries such as, gastric fundoplication, achalasia, adrenalectomy, splenectomy and colon surgeries. He also surgically treats, gall bladder stones, thyroid, goitre, cancers of the stomach/colon/breast/rectum and rectal tumours, rect prolapse and oncoplasty procedures.
- He is also experienced in attending to emergency cases, working in internal medicine and surgical ICUs.
- Dr. Nursal has co-authored several research papers for leading journals.

- Dr. Halil Alış is a general surgeon with 20+ years of experience.
- He is a member of the Turkish Surgery Association, Trauma and Emergency Surgery Association, National Endoscopic-Laparoscopic Surgery Association, Turkish Obesity Surgery Association, Organ Transplant Institutions Coordination Association, Istanbul Surgery Association, SAGES, EAES, IASGO, ISSO and IFSO.
- Dr. Alış completed his graduation from Karadeniz Technical University in 1992 and post-graduation from Istanbul University, Istanbul in 2001.
- He has more than 44 publications published in journals covered by SCI and SCI-e and 45 publications published in domestic magazines.
- He has expertise in all kinds of laparoscopic surgeries, and therapeutic endoscopic procedures such as colonoscopy, gastroscopy, endoscopic USG and ERCP.
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- Dr. Halil Alış is a general surgeon with 20+ years of experience.
- He is a member of the Turkish Surgery Association, Trauma and Emergency Surgery Association, National Endoscopic-Laparoscopic Surgery Association, Turkish Obesity Surgery Association, Organ Transplant Institutions Coordination Association, Istanbul Surgery Association, SAGES, EAES, IASGO, ISSO and IFSO.
- Dr. Alış completed his graduation from Karadeniz Technical University in 1992 and post-graduation from Istanbul University, Istanbul in 2001.
- He has more than 44 publications published in journals covered by SCI and SCI-e and 45 publications published in domestic magazines.
- He has expertise in all kinds of laparoscopic surgeries, and therapeutic endoscopic procedures such as colonoscopy, gastroscopy, endoscopic USG and ERCP.

Dr. Muhammet Fatih Aydin
Surgical Gastroenterologist
- Dr. Muhammet Fatih Aydin is a Gastroenterologist with 16+ years of experience
- His expertise lies in endoscopic reflux therapy (ARMS), ERCP, Management of biliary tract diseases, viral hepatitis (Hepatitis B and C), Endosonography, Endoscopic obesity operation, Chronic liver diseases, Inflammatory bowel diseases, Irritable Bowel Syndrome (IBS), Celiac Disease, Gallbladder Disease, GERD, etc.
- Dr. Aydin completed his graduation from the Medical Faculty of Istanbul University Cerrahpaşa at Ankara University, followed by post-graduation from the reputed Turkey High Specialization Hospital.
- Under his credit, there are both national and international publications and he is actively invited as a guest speaker in scientific meetings, CDE's and worldwide conferences to talk about Endoscopic reflux.
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- Dr. Muhammet Fatih Aydin is a Gastroenterologist with 16+ years of experience
- His expertise lies in endoscopic reflux therapy (ARMS), ERCP, Management of biliary tract diseases, viral hepatitis (Hepatitis B and C), Endosonography, Endoscopic obesity operation, Chronic liver diseases, Inflammatory bowel diseases, Irritable Bowel Syndrome (IBS), Celiac Disease, Gallbladder Disease, GERD, etc.
- Dr. Aydin completed his graduation from the Medical Faculty of Istanbul University Cerrahpaşa at Ankara University, followed by post-graduation from the reputed Turkey High Specialization Hospital.
- Under his credit, there are both national and international publications and he is actively invited as a guest speaker in scientific meetings, CDE's and worldwide conferences to talk about Endoscopic reflux.

Dr. Burak Kankaya
General Surgeon
- Dr. Burak Kankaya is a renowned general surgeon and has an experience of more than 11 years.
- He has expertise in Laparoscopic Cholecystectomy, Laparoscopic Colon Resection, Laparoscopic Nissen Fundoplication, Laparoscopic Ventral Hernia Repair, and Lung Surgery.
- He also has command over the treatment of esophagus, stomach, small intestine, large intestine, liver, pancreas, gallbladder, appendix and bile ducts, and often the thyroid gland
- Dr. Burak Kankaya has professional membership with the Turkish Surgical Association.
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- Dr. Burak Kankaya is a renowned general surgeon and has an experience of more than 11 years.
- He has expertise in Laparoscopic Cholecystectomy, Laparoscopic Colon Resection, Laparoscopic Nissen Fundoplication, Laparoscopic Ventral Hernia Repair, and Lung Surgery.
- He also has command over the treatment of esophagus, stomach, small intestine, large intestine, liver, pancreas, gallbladder, appendix and bile ducts, and often the thyroid gland
- Dr. Burak Kankaya has professional membership with the Turkish Surgical Association.

Dr. Orhan Kocaman
Surgical Gastroenterologist
- Dr. Orhan Kocaman is a Gastroenterologist with 14+ years of experience.
- His expertise lies in Endosonography, ERCP, POEM, Endoscopic reflux treatment, Endoscopic obesity operation, Chronic liver diseases, Inflammatory bowel diseases, Irritable Bowel Syndrome (IBS), Celiac Disease, Gallbladder Disease, GERD, etc.
- Dr. Orhan has completed his graduation from Istanbul University, Cerrahpaşa, followed by post-graduation from the Kocaeli University.
- Under his credit, there are both national and international publications and he is actively invited as a guest speaker in scientific meetings, CDE's and worldwide conferences to talk about Endoscopic reflux.
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- Dr. Orhan Kocaman is a Gastroenterologist with 14+ years of experience.
- His expertise lies in Endosonography, ERCP, POEM, Endoscopic reflux treatment, Endoscopic obesity operation, Chronic liver diseases, Inflammatory bowel diseases, Irritable Bowel Syndrome (IBS), Celiac Disease, Gallbladder Disease, GERD, etc.
- Dr. Orhan has completed his graduation from Istanbul University, Cerrahpaşa, followed by post-graduation from the Kocaeli University.
- Under his credit, there are both national and international publications and he is actively invited as a guest speaker in scientific meetings, CDE's and worldwide conferences to talk about Endoscopic reflux.

Prof. Dr. Ozer Makay
Obesity and Bariatric Surgeon
- Prof. Dr. Ozer Makay is a skilled and reputed General Surgeon with +15 years of experience in the field of various general surgery procedures.
- He completed his undergrad medical education from Ege University, School of Medicine. He then did residency, internship and then fellowship under the supervision of renowned surgeons and professors. He then cleared the 'UEMS Board Examination for Endocrine Surgery'.
- With this, Dr. Makay became the first Turkish surgeon to earn the 'Fellow of European Board of Surgery – div. Endocrine Surgery'.
- In 2008, he started the 'Laparoscopic Adrenalectomy Programme' at the Ege University with Prof. Dr. Mahir Akyıldız. Later in 2012, he also contributed to the launch of the 'Robotic Surgery Programme'.
- Dr. Makay is a renowned general surgeon of endocrine and robotic surgery. He also performs several other procedures such as, obesity surgery, gastroenterologic surgery, stomach and esophageal surgery, mastectomy, abdominal wall hernia surgeries, laparoscopic achalasia surgery, liver/pancreas/biliary tract surgeries, reflux and colorectal cancer surgeries.
- He has received 17 awards and honours for studies presented at national and international congresses.
- He was invited to join the European Board of Endocrine Surgery Committee, thus becoming the first Turkish member of the committee. He was also chosen as the national representative of a European Union Health Project concerning endocrine surgery.
- Dr. Makay has contributed to over 80 national and international publications and has participated in +30 national and international conferences as speaker, guest surgeon and instructor. He has toured France, S.Korea, Italy, Germany, Belgium and the Netherlands as a guest speaker.
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- Prof. Dr. Ozer Makay is a skilled and reputed General Surgeon with +15 years of experience in the field of various general surgery procedures.
- He completed his undergrad medical education from Ege University, School of Medicine. He then did residency, internship and then fellowship under the supervision of renowned surgeons and professors. He then cleared the 'UEMS Board Examination for Endocrine Surgery'.
- With this, Dr. Makay became the first Turkish surgeon to earn the 'Fellow of European Board of Surgery – div. Endocrine Surgery'.
- In 2008, he started the 'Laparoscopic Adrenalectomy Programme' at the Ege University with Prof. Dr. Mahir Akyıldız. Later in 2012, he also contributed to the launch of the 'Robotic Surgery Programme'.
- Dr. Makay is a renowned general surgeon of endocrine and robotic surgery. He also performs several other procedures such as, obesity surgery, gastroenterologic surgery, stomach and esophageal surgery, mastectomy, abdominal wall hernia surgeries, laparoscopic achalasia surgery, liver/pancreas/biliary tract surgeries, reflux and colorectal cancer surgeries.
- He has received 17 awards and honours for studies presented at national and international congresses.
- He was invited to join the European Board of Endocrine Surgery Committee, thus becoming the first Turkish member of the committee. He was also chosen as the national representative of a European Union Health Project concerning endocrine surgery.
- Dr. Makay has contributed to over 80 national and international publications and has participated in +30 national and international conferences as speaker, guest surgeon and instructor. He has toured France, S.Korea, Italy, Germany, Belgium and the Netherlands as a guest speaker.

Dr. Cihan Uras
General Surgeon
- With more than 30 years of practise, Dr. Cihan Uras is a renowned General Surgeon in Turkey.
- He specializes in Breast surgery, Bariatric surgery and Laparoscopic surgery.
- He is a member of the Turkish Medical Association, the American Society of Breast Disease, the Turkish Society of Menopause and Osteoporosis, and the International Hernia Society.
- Dr. Cihan Uras gained his MBBS (1981) from Istanbul University.
- He did his specialization in General Surgery (1986) at Cerrahpasa Medical University.
- Dr. Cihan Uras is the author of several publications and articles.
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- With more than 30 years of practise, Dr. Cihan Uras is a renowned General Surgeon in Turkey.
- He specializes in Breast surgery, Bariatric surgery and Laparoscopic surgery.
- He is a member of the Turkish Medical Association, the American Society of Breast Disease, the Turkish Society of Menopause and Osteoporosis, and the International Hernia Society.
- Dr. Cihan Uras gained his MBBS (1981) from Istanbul University.
- He did his specialization in General Surgery (1986) at Cerrahpasa Medical University.
- Dr. Cihan Uras is the author of several publications and articles.
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