1. Department of Neonatology; Lucas Hospital; Apeldoorn The Netherlands
2. Department of Gynecology, Obstetrics; Reproductive Medicine and Children; Deventer Hospital; Deventer The Netherlands
3. Department Clinical Health Science; University Utrecht; Utrecht The Netherlands
4. Department Viaa; Christian University of Applied Sciences; Zwolle The Netherlands
5. Intensive Care Neonatology; Wilhelmina Children's Hospital; University Medical Centre Utrecht; Utrecht The Netherlands
6. Department of Intensive Care Medicine; Radboud University Medical Centre; Nijmegen The Netherlands