1. Maastricht Multimodal Molecular Imaging (M4I) InstituteMaastricht University Universiteitssingel 50 6229 ER Maastricht The Netherlands
2. DSM Materials Science Center Urmonderbaan 22 6167 MD Geleen The Netherlands
3. Janssen Pharmaceutica, Janssen PR&D Turnhoutseweg 30 2340 Beerse Belgium