
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.

Prof. Dr. Arndt Borkhardt
Paediatric Oncologist
- Prof. Dr. Arndt Borkhardt is a Pediatric Oncologist with experience of over 30+ years.
- He is the Board Member of the European Society of Hematology (European Hematological Association - EHA), and a member of the National Academy of Sciences Leopoldina.
- He received his medical education at the Magdeburg Medical Academy in 1990 and later his Doctorate from the same institution.
- Subsequently, he did his training for a Medical Specialist in Pediatrics, Center for Pediatrics at the Justus Liebig University Giessen in 1991.
- In 1999, he completed his Habilitation in Pediatrics in "Molecular genetics of chromosomes; aberrations in hemoblastosis in children". He was also appointed an Assistant Professor at the Center for Pediatrics at the Justus Liebig University Giessen.
- His areas of interest are the leukemogenesis, bone marrow failure in children, bone marrow transplantation, stem cell transplant (autologous, allogenic & umbilical cord blood transplant), Antibody Therapy, etc.
- Dr. Borkhardt has presented many papers in national and international journals.
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- Prof. Dr. Arndt Borkhardt is a Pediatric Oncologist with experience of over 30+ years.
- He is the Board Member of the European Society of Hematology (European Hematological Association - EHA), and a member of the National Academy of Sciences Leopoldina.
- He received his medical education at the Magdeburg Medical Academy in 1990 and later his Doctorate from the same institution.
- Subsequently, he did his training for a Medical Specialist in Pediatrics, Center for Pediatrics at the Justus Liebig University Giessen in 1991.
- In 1999, he completed his Habilitation in Pediatrics in "Molecular genetics of chromosomes; aberrations in hemoblastosis in children". He was also appointed an Assistant Professor at the Center for Pediatrics at the Justus Liebig University Giessen.
- His areas of interest are the leukemogenesis, bone marrow failure in children, bone marrow transplantation, stem cell transplant (autologous, allogenic & umbilical cord blood transplant), Antibody Therapy, etc.
- Dr. Borkhardt has presented many papers in national and international journals.

Prof. Dr. Daniel Hanggi
Neurosurgeon
- Prof. Dr. Daniel Hanggi is a Dusseldorf-based Neurosurgeon with over 42+ years of experience.
- He is a member of the German Society of Neurosurgery (DGNC), German Spine Society (DWG), and Association of German Neurosurgeons (BDNC).
- He completed his education at the Universities of Zurich and Geneva and additional 2 semesters of computer science at the Swiss Federal Institute of Technology Zurich from 1972 to 1978.
- He also has done clinical training for Neurosurgeons in Switzerland, the USA, and Canada from 1979 to 1984, and in 1985, he completed his Diploma in Neurosurgery from Switzerland.
- Dr. Hanggi has exceptional familiarity in dealing with spinal cord tumors, skull base, auditory nerve tumor, trigeminal neuralgia, Pituitary (endoscopic technique), Cerebral vascular malformation (aneurysm, AVM), Cranio-cervical junction, Complex spine (tumor, degeneration, anomaly, trauma), pediatric neurosurgery, etc.
- He has also penned and co-authored books and articles in national journals.
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- Prof. Dr. Daniel Hanggi is a Dusseldorf-based Neurosurgeon with over 42+ years of experience.
- He is a member of the German Society of Neurosurgery (DGNC), German Spine Society (DWG), and Association of German Neurosurgeons (BDNC).
- He completed his education at the Universities of Zurich and Geneva and additional 2 semesters of computer science at the Swiss Federal Institute of Technology Zurich from 1972 to 1978.
- He also has done clinical training for Neurosurgeons in Switzerland, the USA, and Canada from 1979 to 1984, and in 1985, he completed his Diploma in Neurosurgery from Switzerland.
- Dr. Hanggi has exceptional familiarity in dealing with spinal cord tumors, skull base, auditory nerve tumor, trigeminal neuralgia, Pituitary (endoscopic technique), Cerebral vascular malformation (aneurysm, AVM), Cranio-cervical junction, Complex spine (tumor, degeneration, anomaly, trauma), pediatric neurosurgery, etc.
- He has also penned and co-authored books and articles in national journals.

Prof. Dr. Hans-Jacob Steiger
Neurosurgeon
- Prof. Dr. Hans-Jacob Steiger is a celebrated Neurosurgeon with over 41+ years of experience.
- He completed his education at the Universities of Zurich and Geneva and additional 2 semesters of computer science at the Swiss Federal Institute of Technology Zurich between 1972 to 1978.
- He also has done clinical training for neurosurgery from the USA and Canada, and later received his Research Grant from the Swiss National Science Foundation.
- Dr. Steiger is specialized in brain tumor surgery, cerebrovascular surgery, spinal surgery, treatment of movement disorders, and pain, as well as pediatric neurosurgery.
- He has published various national and international paper publications on neurosurgery and spinal surgery.
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- Prof. Dr. Hans-Jacob Steiger is a celebrated Neurosurgeon with over 41+ years of experience.
- He completed his education at the Universities of Zurich and Geneva and additional 2 semesters of computer science at the Swiss Federal Institute of Technology Zurich between 1972 to 1978.
- He also has done clinical training for neurosurgery from the USA and Canada, and later received his Research Grant from the Swiss National Science Foundation.
- Dr. Steiger is specialized in brain tumor surgery, cerebrovascular surgery, spinal surgery, treatment of movement disorders, and pain, as well as pediatric neurosurgery.
- He has published various national and international paper publications on neurosurgery and spinal surgery.

Prof. Dr. Rainer Haas
Hematologist
- Prof. Dr. Rainer Haas is a Hematologist-Oncologist in Germany with experience of over 38+ years.
- After he received his medical education, he trained for the title of Doctor of Medicine at the Department of Hematology, Oncology, and Rheumatology at the University Hospital Heidelberg in 1984.
- Later, he did his Research Internship at the German Cancer Society, Ontario Institute for Cancer Research, Toronto, Canada in 1985 and also Habilitation and Venia Legendi, Internal Medicine in 1991.
- His areas of interest are the treatment of leukemia and lymphoma, Radiochemotherapy, stem cell transplant (autologous, allogenic & umbilical cord blood transplant), Antibody Therapy, Immunotherapy, anemia, etc.
- Dr. Haas has presented many papers in diverse conferences held nationally and internationally.
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- Prof. Dr. Rainer Haas is a Hematologist-Oncologist in Germany with experience of over 38+ years.
- After he received his medical education, he trained for the title of Doctor of Medicine at the Department of Hematology, Oncology, and Rheumatology at the University Hospital Heidelberg in 1984.
- Later, he did his Research Internship at the German Cancer Society, Ontario Institute for Cancer Research, Toronto, Canada in 1985 and also Habilitation and Venia Legendi, Internal Medicine in 1991.
- His areas of interest are the treatment of leukemia and lymphoma, Radiochemotherapy, stem cell transplant (autologous, allogenic & umbilical cord blood transplant), Antibody Therapy, Immunotherapy, anemia, etc.
- Dr. Haas has presented many papers in diverse conferences held nationally and internationally.
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