1. Department of Population Medicine, Harvard Pilgrim Health Care Institute, Boston, MA 02215, USA
2. Strategic Research, Laerdal Medical, 4007 Stavanger, Norway
3. Department of Research, Stavanger University Hospital, 4019 Stavanger, Norway
4. Haydom Lutheran Hospital, Haydom 9000, Tanzania
5. Department of Paediatrics and Adolescence Medicine, Østfold Hospital Trust, 1714 Grålum, Norway
6. Weill Cornell Medicine, Department of Pediatrics, Division of Neonatology, New York, NY 10065, USA
7. Faculty of Health Sciences, University of Stavanger, 4021 Stavanger, Norway
8. Department of Anesthesia, Stavanger University Hospital, 4019 Stavanger, Norway