1. Knowledge Centre for Breastfeeding Infants with Special Needs, Department of Neonatology, Rigshospitalet, Copenhagen, Denmark
2. Department of Health Sciences, Faculty of Medicine, Lund University, Sweden
3. Department of Neonatology, Herlev, Copenhagen, Denmark
4. School of Public Health, Department of Nursing Science, University of Aarhus, Aarhus, Denmark