1. Global Health Unit, Department of Paediatrics and Adolescent Medicine, The Juliane Marie Centre Copenhagen University Hospital Rigshospitalet Copenhagen Denmark
2. Department of Paediatrics and Adolescent Medicine University Hospital of Copenhagen, Rigshospitalet Copenhagen Denmark
3. Department of Neonatology University Hospital of Copenhagen, Rigshospitalet Copenhagen Denmark
4. Department of Neonatology, Hans Christian Andersen Children's Hospital Odense University Hospital Odense Denmark
5. Zanzibar Health Research Institute Zanzibar Tanzania