1. Department of Endocrinology and Internal Medicine, Aarhus University Hospital , Aarhus 8200 N , Denmark
2. Department of Molecular Medicine, Aarhus University Hospital , Aarhus 8200 N , Denmark
3. Department of Pediatrics, Radboud University Medical Centre, Amalia Children’s Hospital , 6525 Nijmegen , the Netherlands
4. Department of Cardiology, Aalborg University Hospital , Aalborg 9000 , Denmark
5. Department of Clinical Genetics, Aarhus University Hospital , Aarhus 8200 N , Denmark