Drs Rudolph, Koopman, Blokpoel, and Kneyber are affiliated with the Division of Paediatric Critical Care Medicine, Department of Paediatrics, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands. Dr Kneyber is affiliated with Critical Care, Anaesthesiology, Peri-Operative & Emergency Medicine (CAPE), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.