1. Department of Nuclear Medicine and Molecular ImagingUniversity Medical Center Groningen, University of GroningenGroningen The Netherlands
2. Department of Radiology and Nuclear MedicineAmsterdam University Medical Centers, Academic Medical Center, University of AmsterdamAmsterdam The Netherlands
3. Department of PharmacologyJohannes Gutenberg UniversityMainz Germany
4. Department of Nuclear MedicineGhent University, University HospitalGhent Belgium