1. Institute of Applied Synthetic ChemistryVienna University of Technology (TU Wien) Getreidemarkt 9/163 1060 Vienna Austria
2. Department of Radiation Physics Institute for Clinical SciencesSahlgrenska Academy at University of Gothenburg Gula Stråket 2b 41345 Gothenburg Sweden
3. Department of Drug Design and PharmacologyUniversity of Copenhagen 2100 Copenhagen Denmark
4. Department of Clinical PhysiologyNuclear Medicine & PET Rigshospitalet Blegdamsvej 9 2100 Copenhagen (Denmark