1. Department of Radiology and Nuclear Medicine Basel University Hospital, Basel, Switzerland

2. Departments of Nuclear Medicine Tübingen University Hospital, Tübingen, Germany

3. General, Visceral, and Transplant Surgery Tübingen University Hospital, Tübingen, Germany

4. Division of Internal Medicine, Endocrinology, Diabetology, Nephrology, Angiology, and Clinical Chemistry, Tübingen University Hospital, Tübingen, Germany

5. Division of Radiology, Tübingen University Hospital, Tübingen, Germany

6. Department of Nuclear Medicine Marienhospital Stuttgart, Teaching Hospital of Tübingen University Hospital, Stuttgart, Germany