1. Department of Drug Design and Pharmacology Faculty of Health and Medical Sciences University of Copenhagen Jagtvej 160 2100 Copenhagen Denmark
2. Department of Clinical Physiology Nuclear Medicine and PET Rigshospitalet Blegdamsvej 9 2100 Copenhagen Denmark
3. Novo Nordisk A/S Smørmosevej 17–19, Bagsværd 2880 Copenhagen Denmark
4. Rudbeck Laboratory, Department of Public Health and Caring Sciences Uppsala University Dag Hammarskjölds väg 20 75185 Uppsala Sweden
5. Neurobiology Research Unit Rigshospitalet Blegdamsvej 9 2100 Copenhagen Denmark