1. Functional Imaging Unit; Section of Clinical Physiology and Nuclear Medicine; Department of Diagnostics; Glostrup Hospital; Copenhagen University Hospital; Glostrup Denmark
2. Department of Clinical Physiology; Nuclear Medicine and PET; Rigshospitalet, Copenhagen University Hospital; Copenhagen Denmark
3. Center for Healthy Aging; Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen Denmark
4. Department of Clinical Physiology and Nuclear Medicine; Herlev Hospital; Copenhagen University Hospital; Herlev Denmark
5. Section of Radiology; Department of Diagnostics; Glostrup Hospital; Copenhagen University Hospital; Glostrup Denmark