1. Department of Nuclear Medicine, Cantonal Hospital Baden, 5404 Baden, Switzerland
2. Department of Nuclear Medicine, University Hospital Zurich, University of Zurich, 8006 Zurich, Switzerland
3. Nuclear Medicine Unit, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, 98122 Messina, Italy
4. Nuclear Medicine, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
5. Department of Health Sciences (DISSAL), University of Genova, 16126 Genova, Italy
6. Department of Mathematics, Seminar for Statistics, ETH Zurich, 8092 Zurich, Switzerland
7. Clinic for Nuclear Medicine and Molecular Imaging, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, Switzerland
8. Department of Urology, University Hospital of Zurich, 8006 Zurich, Switzerland