Medical University of Graz, Graz, Styria, Austria
Kaiser Franz Josef Spital, Vienna, Austria
Hanusch Krankenhaus, Vienna, Austria
Medical University of Vienna, Vienna, Austria
Medical University Vienna, Dpt. of Internal Medicine 3, Div. of Gastroenterology and Hepatology, Vienna, Austria
Michael Frass, Wien, Austria
Department of Ophthalmology Medical University of Vienna, Vienna, Austria
Bernhard Gottlieb University Clinic of Dentistry, Vienna, Austria
Cleveland Clinic Department of Outcomes Research, Cleveland, Ohio, United States
Medical University of Vienna, Vienna, Austria
Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
Medical University of Vienna, Vienna, Austria
Medical University of Vienna, Department for Psychiatrie and Psychotherapie, Vienna, Austria
Dept. Medicine III, Medical University of Vienna, Vienna, Austria