- Department of Internal Medicine II, University of Freiburg - Medical Center, Ulm University, University of Tuebingen, Faculty of Medicine, Institute for Clinical Epidemiology and Applied Biometry, University of Regensburg, University of Oldenburg, University of Hanover, Robert-Bosch-Hospital, Ulm University, Munich Schwabing Hospital, Otto-von-Guericke-Universität Magdeburg, Charite-Oncology Centre, Red Cross Hospital, Munich, University Hospital Grosshadern, Technische Universität München (TUM), Universitätsmedizin Mainz, Klinikum Bremen Mitte, University of Rostock, University of Munster, University of Greifswald - University Hospital Greifswald, Martin Luther University of Halle-Wittenberg, Zentrum Innere Medizin, Dr. Horst-Schmidt-Klinik, - Department of Internal Medicine II, Charité - Universitätsmedizin Berlin, Ernst von Bergmann Hospital, Bolzano Municipal Hospital, Ulm University, Schleswig-Holstein University - University Hospital Center, Stauferklinikum Schwäbisch Gmünd, University of Tübingen - University Hospitals Tübingen, - Department of Internal Medicine II and Independent

Westpfalz Hospital, Westpfalz Hospital - Department of Internal Medicine 1, University of Leipzig, Heidelberg University, University of Oslo - Oslo University Hospital, Saarland University - Department of Internal Medicine 1, University of Cologne - University Hospital of Cologne, University Hospital Ulm, University of Tübingen - University Hospitals Tübingen, Rechts der Isar Hospital, Munich University Hospital, University of Göttingen, Hospital Motherhouse of the Borromäerinnen, University of Freiburg - Medical Center, Klinikum-Fulda gAG, University of Oldenburg, University of Hamburg - University Medical Center Hamburg-Eppendorf, Dr. Horst-Schmidt-Klinik, Küchwald Hospital Chemnitz, University Hospital Marburg, Schleswig-Holstein University - University Hospital Center, Hematology AUSL-IRCCS Reggio Emilia, Hematology ASST Spedali Civili Brescia, University of Copenhagen - Rigshospitalet, Università degli studi di Modena e Reggio Emilia (UNIMORE), University Hospital Mannheim, Sapienza University of Rome, Evang. Diakonie-Krankenhaus, University of Wuerzburg - Institute of Pathology, Saarland University - Medical School, University Hospital of North Norway, Tel Aviv University - Rabin Medical Center, Saarland University - Department of Internal Medicine 1, Saarland University - Department of Internal Medicine 1, Saarland University - Department of Internal Medicine 1, Saarland University - Department of Internal Medicine 1, Saarland University - Department of Internal Medicine 1, Asklepios Klinik St. Georg, University of Leipzig, University of Leipzig, Saarland University - Department of Internal Medicine 1 and Independent