1. Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100 Copenhagen, Denmark
2. Department of Radiation Physics, Skåne University Hospital, Barngatan 3, 22242 Lund, Sweden
3. Department of Clinical Physiology Nuclear Medicine & PET, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark