1. Department of Health Technology, Biotherapeutic Engineering and Drug Targeting, Technical University of Denmark, Kgs. Lyngby, Denmark.
2. Department of Clinical Physiology, Nuclear Medicine and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.
3. The Hevesy Laboratory, Center for Nuclear Technologies, Technical University of Denmark, Roskilde, Denmark.