1. Department of Pediatric Surgery, Surgical Clinic C, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
2. Department of Pathology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
3. Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
4. Section of Endocrinology, Department of Pediatrics, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark