1. Department of Endocrinology, Université catholique de Louvain, Cliniques Universitaires Saint-Luc, Brussels, Belgium
2. Department of Radiology, Université catholique de Louvain, Cliniques Universitaires Saint-Luc, Brussels, Belgium
3. Department of Endocrinology, University Hospital of Basel, University of Basel, Basel, Switzerland
4. Clinic of Radiology and Nuclear Medicine, Division of Nuclear Medicine, University Hospital of Basel, University of Basel, Basel, Switzerland