Charité - Univiversitätsmedizin Berlin, Berlin-Mitte, Berlin, Germany
University Hospital Jena Department of Internal Medicine IV, Jena, Thüringen, Germany
University Medical Center Freiburg Department of Internal Medicine II Department of Infectiology, Freiburg, Baden-Württemberg, Germany
University Hospital Heidelberg Clinic for Gastroenterology, Infections, Poisoning, Heidelberg, Baden-Württemberg, Germany
Hochschulambulanz für Naturheilkunde der Charité-Universitätsmedizin Berlin am Immanuel-Krankenhaus, Berlin, Germany
Charité - Universitätsmedizin Berlin, Berlin, Germany
Justus-Liebig-University Giessen, Gießen, Germany
Hannover Medical School, Hanover, Germany
Charite University, Berlin, Germany, Berlin, Germany
Charité Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin-Steglitz, Berlin, Germany
Experimental and Clinical Research Center (ECRC), Berlin, Germany
Medical University of Graz, Graz, Austria
Medical University Innsbruck, Innsbruck, Austria
Clinic Klagenfurt Wörthersee, Klagenfurt, Austria
Charité University Medicine, Berlin, Germany
Charité Campus Benjamin Franklin, Berlin, Germany