1. Department of Paediatrics; Halland Hospital Halmstad; Halmstad Sweden
2. Department of Paediatrics; Institute of Clinical Sciences; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
3. Child Health Care Unit; Region Halland Sweden
4. Primary Health Care Unit; Department of Public Health and Community Medicine; Institute of Medicine; The Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
5. Research and Development Centre Spenshult; Halmstad Sweden