
Prof. Dr. Wolfram T. Knoefel
General Surgeon
- Prof. Dr. Wolfram T. Knoefel is a Dusseldorf-based General, Visceral, and Pediatric Surgeon, with experience of more than 27 years.
- He studied medicine at the University of Hamburg, the University of Lausanne, Harvard Medical School in Boston, and School of Medicine at Mount Sinai in New York.
- After completing his medical practice, he worked in various prestigious organizations such as the Department of Surgery at the University Hospital of Ludwig Maximilian University of Munich, Massachusetts General Hospital, Harvard Medical School, as well as in the Department of Surgery at the University Hospital Hamburg-Eppendorf.
- In 1996, he completed his doctoral thesis on the subject "Disorders of microcirculation in acute pancreatitis".
- Prof. Knoefel's main focus includes the surgical treatment of malignant tumors of the liver, biliary tract, and pancreas, thyroid, lung, and rectum.
- He likes to write articles and book chapters for national and international journals.
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- Prof. Dr. Wolfram T. Knoefel is a Dusseldorf-based General, Visceral, and Pediatric Surgeon, with experience of more than 27 years.
- He studied medicine at the University of Hamburg, the University of Lausanne, Harvard Medical School in Boston, and School of Medicine at Mount Sinai in New York.
- After completing his medical practice, he worked in various prestigious organizations such as the Department of Surgery at the University Hospital of Ludwig Maximilian University of Munich, Massachusetts General Hospital, Harvard Medical School, as well as in the Department of Surgery at the University Hospital Hamburg-Eppendorf.
- In 1996, he completed his doctoral thesis on the subject "Disorders of microcirculation in acute pancreatitis".
- Prof. Knoefel's main focus includes the surgical treatment of malignant tumors of the liver, biliary tract, and pancreas, thyroid, lung, and rectum.
- He likes to write articles and book chapters for national and international journals.

Dr. Matthias Schlensak
Obesity and Bariatric Surgeon
- Dr. Matthias Schlensak is a General & Bariatric Surgeon with experience of more than 29 years in the field.
- He is a member of the German Society of Surgery (DGCH), the German society for general and visceral surgery (DGAV), German Society of Treatment of Obesity (CAADIP), International Federation for the Surgery of Obesity (IFSO), German Surgical Working Group for Minimally Invasive Surgery (CAMIC), and European Hernia Society (EHS).
- He pursued his study in medicine at the University of Essen in 1991.
- He is ranked among the best weight loss surgeons in Germany, Austria, and Switzerland according to the Leading Medicine List.
- Dr. Schlensak has comprehensive knowledge in the field of bariatric surgery, as well as in the treatment of complications after bariatric surgery, and also Gastric Balloon, Mini Port Surgeries, Colonoscopy, Abdominal surgery, and Slimming, etc.
- He has written several publications to his credit in reputed national and international journals.
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- Dr. Matthias Schlensak is a General & Bariatric Surgeon with experience of more than 29 years in the field.
- He is a member of the German Society of Surgery (DGCH), the German society for general and visceral surgery (DGAV), German Society of Treatment of Obesity (CAADIP), International Federation for the Surgery of Obesity (IFSO), German Surgical Working Group for Minimally Invasive Surgery (CAMIC), and European Hernia Society (EHS).
- He pursued his study in medicine at the University of Essen in 1991.
- He is ranked among the best weight loss surgeons in Germany, Austria, and Switzerland according to the Leading Medicine List.
- Dr. Schlensak has comprehensive knowledge in the field of bariatric surgery, as well as in the treatment of complications after bariatric surgery, and also Gastric Balloon, Mini Port Surgeries, Colonoscopy, Abdominal surgery, and Slimming, etc.
- He has written several publications to his credit in reputed national and international journals.

Dr. Mahdi Rezai
Surgical Oncologist
- Dr. Mahdi Rezai is a Surgical Oncologist with experience of 33+ years in the field.
- He is a Founder of the West German Study Group Breast Cancer, a member of the North-Eastern German Society of Gynecologic Oncology, German Society of Plastic, Reconstructive and Aesthetic Surgeons, European Institute of Oncology, Austrian Society of Gynaecology and Obstetrics, and Turkish Academy of Senology.
- He completed his medical studies at the Medical Faculty of the Heinrich-Heine-University in 1975 and has a specialty in oncology.
- Dr. Rezai has exceptional knowledge in breast cancer, lung cancer staging, curative and palliative surgery, Surgery for mesothelioma, Laser surgery of lung metastases, intraoperative hyperthermic chemotherapy, minimally invasive thoracic surgery, Tracheal Surgery, Interventional bronchoscopy, stents, laser therapy, etc.
- He has published many articles in peer-reviewed national and international journals.
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- Dr. Mahdi Rezai is a Surgical Oncologist with experience of 33+ years in the field.
- He is a Founder of the West German Study Group Breast Cancer, a member of the North-Eastern German Society of Gynecologic Oncology, German Society of Plastic, Reconstructive and Aesthetic Surgeons, European Institute of Oncology, Austrian Society of Gynaecology and Obstetrics, and Turkish Academy of Senology.
- He completed his medical studies at the Medical Faculty of the Heinrich-Heine-University in 1975 and has a specialty in oncology.
- Dr. Rezai has exceptional knowledge in breast cancer, lung cancer staging, curative and palliative surgery, Surgery for mesothelioma, Laser surgery of lung metastases, intraoperative hyperthermic chemotherapy, minimally invasive thoracic surgery, Tracheal Surgery, Interventional bronchoscopy, stents, laser therapy, etc.
- He has published many articles in peer-reviewed national and international journals.
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