1. Department of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany
2. Department of Nuclear Medicine, University Hospital of Giessen and Marburg, Campus Marburg, Marburg, Germany
3. Division of Nuclear Medicine, Department of Radiology and Nuclear Medicine, Otto von Guericke University, Magdeburg, Germany
4. Nuclear Medicine, MVZ Radiologie Nuklearmedizin, Bethanien-Krankenhaus, Frankfurt am Main, Germany
5. Department of Nuclear Medicine, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
6. Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Nuclear Medicine, Berlin, Germany
7. Nuclear Medicine, Medical Faculty, University of Augsburg, Augsburg, Germany
8. Department of Nuclear Medicine, University Hospital Münster, Münster, Germany
9. Department of Nuclear Medicine, Klinikum Konstanz, Konstanz, Germany