1. NMR Research Unit, University of Oulu, Oulu, Finland
2. Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
3. Research Unit of Health Sciences and Technology, University of Oulu, Oulu, Finland
4. Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
5. Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland