Dr. Irene Marthe Lang is a vascular surgeon and cardiologist at Confraternitaet Private Hospital. She introduced the first method in Austria for dilating narrowed pulmonary vessels. Dr. Lang is a professor at the Medical University of Vienna. She graduated with top honors under the auspices of the Austrian president.

• Specializes in pulmonary arterial hypertension and vascular interventions.
• Winner of the honorary order for services to the Republic of Austria.
• Conducted five years of clinical research in San Diego, USA.
• Treats patients at Vienna’s oldest private hospital, founded in 1729.

Dr. Josef Grohs is a specialist orthopedic surgeon at Döbling Private Hospital in Vienna. He is the current Chair of AO-Spine Austria and focuses on spine surgery. Dr. Grohs once served as President of the Austrian Spine Society. He earned his medical degree and habilitation from the Medical University of Vienna.

• Served as Deputy Chief of the Spine Unit at the Medical University of Vienna.
• Holds specialized diplomas in clinical investigation and manual medicine.
• Performed orthopedic surgeries during international missions in Ghana and Kenya.
• Maintains membership in the Spine Society of Europe.

Dr. Michael Georgopoulos is a Senior Consultant in Vitreoretinal Surgery at the Medical University of Vienna. He specializes in surgical treatment for diseases of the macula, retina, and vitreous body. Dr. Georgopoulos treats patients at Döbling Private Hospital. This clinic holds ISO certification for quality and safety standards.

• Performs combined anterior and posterior surgeries.
• Treats retinal detachment, macular openings, and vitreous hemorrhages.
• Uses high-resolution optical coherence tomography for precise diagnostics.
• Researched additive VEGF therapy and seamless transconjunctival vitrectomy.

Dr. Martin Zehetmayer is an eye surgery specialist and University Professor at Döbling Private Hospital in Vienna. He heads the outpatient clinic for eye tumors and was formerly Head of the Eye Clinic. Dr. Zehetmayer has authored over 100 scientific papers on ophthalmic oncology and cataract surgery. He focuses on radiation therapy for choroid tumors and modern intraocular lens implants.

• Expert in stereotactic radiation therapy using Gamma Knife and LINAC technologies.
• Former President of the Vienna Ophthalmological Society.
• Served as Secretary of the Austrian Ophthalmological Society.
• Practices at Döbling Private Hospital, an ISO-certified facility in Austria.

Dr. Arnulf Ferlitsch heads the Internal Medicine department at the Hospital of the Barmherzigen Brüder Vienna. He is a specialist in gastroenterology, hepatology, and intensive care medicine. He trained at prestigious US institutions, including UCLA and the University of Pennsylvania. Dr. Ferlitsch established the hepatic hemodynamics laboratory at the Medical University of Vienna.

• Specializes in treating cirrhosis, Crohn's disease, and ulcerative colitis.
• Winner of multiple Best Abstract Awards at United European Gastroenterology Week.
• Performs gastroscopy, colonoscopy, and interventional endoscopy procedures.
• Practices at the ISO-accredited Döbling Private Hospital in Vienna.

Dr. Stefan Sacu is a specialist in ophthalmology and optometry at Vienna General Hospital. He serves as a resident at the Medical University of Vienna. Dr. Sacu specializes in cataract and retinal surgery. He also treats complex macular and retinal diseases. His research focuses on new therapies for exudative macular degeneration.

• Winner of the Theodor-Koerner Science Prize for his research contributions.
• Develops genetic therapies for hereditary retinal diseases with the University of Pennsylvania.
• Member of the European Society of Cataract and Refractive Surgeons (ESCRS).
• Performs mutation analysis and genetic mapping for different retinal dystrophies.

Dr. Walter Klepetko is a thoracic surgeon at Vienna General Hospital. He heads the Division of Thoracic Surgery at MedUni Vienna. He established one of the largest lung transplant programs in the world. Dr. Klepetko specializes in lung cancer, pulmonary hypertension, and tracheal surgery.

• Performs over 100 lung transplant procedures annually.
• Former president of the European Association for Cardio-Thoracic Surgery.
• Served as the European representative for the American Association for Thoracic Surgery.
• Winner of the City of Vienna Prize for Medical Sciences.

Dr. Michael Georgopoulos is a Senior Consultant in Vitreoretinal Surgery at the Medical University of Vienna. He specializes in surgical treatment for diseases of the macula, retina, and vitreous body. Dr. Georgopoulos is an expert in managing complex conditions like retinal detachment and vitreomacular traction syndrome. He works at Vienna General Hospital (AKH), one of Europe's most innovative medical facilities.

• Performs combined operations, including simultaneous cataract and retinal surgery.
• Uses high-resolution three-dimensional optical coherence tomography for pre- and postoperative care.
• Researches clinical applications for seamless 23-dimensional transconjunctival vitrectomy.
• Treats specific vitreous disorders including vitreous hemorrhage and opacification.

Dr. Martin Zehetmayer is the Head of the Eye Clinic at Vienna General Hospital. He specializes in ophthalmic oncology and stereotactic radiation therapy for malignant eye tumors. Dr. Zehetmayer is a university professor who treats complex cases like choroid melanoma. He works at the ISO-accredited Vienna General Hospital, one of Europe's largest university clinics.

• Contributor to over 100 scientific papers on eye tumors and cataract surgery.
• Expert in Gamma Knife and LINAC radiation therapy for malignant choroid tumors.
• Former President of the Vienna Ophthalmological Society.
• Served as the Secretary of the Austrian Ophthalmological Society.

Dr. Klaus Kaczirek is a senior surgeon at the University Clinic for Surgery in Vienna. He specializes in hepatobiliopancreatic and oncological visceral surgery. Dr. Kaczirek focus on complex treatments for the liver, pancreas, and endocrine system. He is a private lecturer at the Medical University of Vienna.

• Leads the liver, gall, and pancreas working group for the Austrian Society of Surgical Oncology.
• Certified specialist in both general surgery and visceral surgery.
• Acts as a reviewer for major journals like the Journal of Clinical Oncology.
• Member of the European Society of Endocrine Surgeons and the European Society of Surgical Oncology.

Dr. Sebastian Schoppmann leads the Gastroesophageal Tumor Unit at the Comprehensive Cancer Center in Vienna. He specializes in gastric and esophageal surgery at the Vienna General Hospital (AKH). Dr. Schoppmann is a recognized authority in his field. He has published over 240 specialized articles in medical journals.

• Serves as the General Secretary of the Austrian Society of Surgical Oncology.
• Heads the Upper-GI-Service at the Medical University of Vienna since 2012.
• Treats complex conditions like esophageal cancer, gastric tumors, and abdominal hernias.
• Works at Vienna General Hospital, one of Europe's largest medical institutions.

Dr. Philipp Riss leads the Surgical Endocrinology team at Vienna General Hospital. He specializes in visceral surgery and thyroid research. He won the Sandoz Award for his work on thyroid conditions. Dr. Riss is a University Professor and a Senior Physician in Vienna.

• Heads the Surgical Endocrinology Working Group at the Medical University of Vienna.
• Treats complex conditions like adrenal adenoma and autoimmune thyroiditis.
• Performs specialized thyroidectomy and radioiodine therapy.
• Sits on the board of the Austrian Society of Neuroendocrine Tumors.

Dr. Josef Grohs is a prominent orthopedic surgeon at Vienna General Hospital (AKH). He serves as the Chair of AO-Spine Austria. This doctor specializes in complex spine surgery and manual medicine. He has managed orthopedic cases in Europe and Africa. Dr. Grohs treats conditions like scoliosis, ankylosing spondylitis, and hip fractures.

• Acts as a core reviewer for the Spine Society of Europe.
• Served as the President of the Austrian Spine Society.
• Holds a habilitation in orthopedics from the Medical University of Vienna.
• Practices at the ISO-accredited Vienna General Hospital.