1. Department of Surgery (A), Medical Faculty; Heinrich-Heine-University and University Hospital Duesseldorf; Duesseldorf Germany
2. Institute of Pathology, Medical Faculty; Heinrich-Heine-University and University Hospital Duesseldorf; Duesseldorf Germany
3. Institute for Transplantation Diagnostics and Cell Therapeutics, Medical Faculty; Heinrich-Heine-University and University Hospital Duesseldorf; Duesseldorf Germany
4. Institute of Pathology and Cytology; St. Vincenz Hospital Limburg; Limburg Germany
5. Division for Specific Endocrinology, Medical Faculty; Heinrich-Heine-University and University Hospital Duesseldorf; Duesseldorf Germany