Stephan PetersennStephan Petersenn, MD, ENDOC Center for Endocrine Tumors, Hamburg, Germany. Prof. Stephan Petersenn studied medicine at the University of Kiel, Germany (1984-1987 and 1988-1990) and the University of Vienna, Austria (1987-1988). He is qualified in Inernal Medicine (1999), Diabetology (1999), Endocrinology (2000), and Andrology (2007). Previously, he worked in an internship (1991-1992) in the Department of Medicine, University of Kiel, as a Research Fellow (1992-1994) to Professor S Melmed at Cedars-Sinai Medical Center, Los Angeles, USA, as a Resident and Fellow (1995-2000) in the Department of Medicine, University of Hamburg, and as a Senior Physician (2001-2009) in the Division of Endocrinology, University of Duisburg-Essen. In 2009, he founded the ENDOC Center for Endocrine Tumors in Hamburg, while remaining a member of the faculty of the University of Duisburg-Essen. In 2003, he became Associate Professor, and in 2008 Professor of Medicine, at the University of Duisburg-Essen. His research is focused on the diagnosis and treatment of pituitary and adrenal tumors, as well as neuroendocrine tumors. Furthermore, his clinical and basic studies aim for a better understanding of the physiology and pathophysiology of somatostatin receptors. Throughout his career, Prof Petersenn has published more than 160 articles in peer-reviewed journals of high reputation, and he has presented at many international conferences. He is a member of several societies, including the Endocrine society, the European Society of Endocrinology, and the International Pituitary Society. Read More Read Less