Odense University Hospital, Odense University Hospital, University of Copenhagen - Copenhagen University Hospital, University of Copenhagen - Department of Growth and Reproduction, Odense University Hospital - Department of Endocrinology, University of Copenhagen - Rigshospitalet, University of Copenhagen - Rigshospitalet, University of Copenhagen - Copenhagen University Hospital, Aarhus University - Aarhus University Hospital and Aarhus University - Aarhus University Hospital