| University Hospital of Cologne | University Hospital of Cologne |
| Medizinische Universitaetsklinik I at the University of Cologne | Medizinische Universitaetsklinik I at the University of Cologne |
| University of Cologne | University of Cologne |
| 1st Dept. of Medicine, Cologne University Hospital | 1st Dept. of Medicine, Cologne University Hospital |
| Praxis Fuer Haematologie Internistische Onkologie | Praxis Fuer Haematologie Internistische Onkologie |
| Children's Hospital | Children's Hospital |
| German CLL Study Group | German CLL Study Group |
| University Eye Hospital, University of Cologne | University Eye Hospital, University of Cologne |
| Dreifaltigkeits-Krankenhaus | Dreifaltigkeits-Krankenhaus |
| University of Cologne, Department of General, Visceral and Cancer Surgery | University of Cologne, Department of General, Visceral and Cancer Surgery |
| German Aerospace Center (DLR) | German Aerospace Center (DLR) |
| St. Franziskus-Hospital | St. Franziskus-Hospital |
| University of Cologne, Dept. of Psychiatry and Psychotherapy | University of Cologne, Dept. of Psychiatry and Psychotherapy |
| CF Zentrum Köln, Universitätskrankenhaus Köln | CF Zentrum Köln, Universitätskrankenhaus Köln |
| Evangelisches Klinikum Koeln Weyertal | Evangelisches Klinikum Koeln Weyertal |
| Department of electrophysiology, Heart Center Cologne, University of Cologne | Department of electrophysiology, Heart Center Cologne, University of Cologne |
| Kliniken der Stadt Koeln gGmbH - Krankenhaus Holweide | Kliniken der Stadt Koeln gGmbH - Krankenhaus Holweide |
| Clinic for orthopedics, trauma surgery and sports traumatology, hospital Cologne Merheim | Clinic for orthopedics, trauma surgery and sports traumatology, hospital Cologne Merheim |