1. Division of Paediatric and Adolescent Medicine, Department of Child and Adolescent Mental Health in Hospital, Oslo University Hospital, Oslo, Norway
2. Centre for Rare Disorders, Oslo University Hospital, Oslo, Norway
3. Division of Gynaecology and Obstetrics, Department of Gynaecology, Oslo University Hospital, Oslo, Norway
4. Frambu Resource Centre for Rare Disorders, Siggerud, Norway
5. Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway