Institute of Physical Medicine and Rehabilitation, Social Medical Centre South, Vienna, Austria
Medical University of Vienna, Vienna, Austria
Department of Pulmonary Medicine, Medical University of Vienna, Vienna, Austria
General Hospital Vienna, Vienna, Austria
Medical University of Vienna, Department of Medicine III, ICU, Vienna, Austria
Medical University of Vienna, Vienna, Austria
Institute of Hematology and Blood Transfusions Prague, Prague, Czech Republic
Div. of Gastroenterology and Hepatology, Medical University of Vienna, Vienna, Austria
Internal Medicine III, Div. of Gastroenterology and Hepatology, Endoscopy Unit, Medical University of Vienna, Vienna, Austria
Internal Medicine IV, Krankenhaus der Elisabethinen Linz, Linz, Upper Austria, Austria
Medical University of Graz, Graz, Austria
Wilhelminenspital der Stadt Wien, Vienna, Austria
Internal Medicine III, Gastroenterology and Hepatology, Medical University of Vienna, Vienna, Austria