1. Department of Pediatrics and Adolescence Medicine Nordsjaellands Hospital, Capital Region of Denmark Denmark
2. Department of Clinical Medicine University of Copenhagen Copenhagen Denmark
3. Department of Pediatrics Hvidovre Hospital, Capital Region of Denmark Denmark
4. Department of Public Health University of Copenhagen Copenhagen Denmark
5. Department of Pediatrics, H.C. Andersen Children's Hospital Odense University Hospital, University of Southern Denmark Odense Denmark