1. Department of Clinical Physiology and Nuclear Medicine; Bispebjerg University Hospital; Copenhagen; Denmark
2. Department of Internal Medicine and Endocrinology; Herlev University Hospital; Herlev; Denmark
3. Department of Clinical Physiology and Nuclear Medicine; Glostrup University Hospital; Glostrup; Denmark
4. Department of Biomedical Sciences; Faculty of Health Sciences; University of Copenhagen; Copenhagen; Denmark