1 Radboud University Medical Center, Department of Intensive Care, Nijmegen, the Netherlands. Electronic address: marieke.zegers@radboudumc.nl.
2 Radboud University Medical Center, Department of Intensive Care, Nijmegen, the Netherlands; Jeroen Bosch Hospital, Department of Intensive Care, 's Hertogenbosch, the Netherlands.
3 Jeroen Bosch Hospital, Department of Intensive Care, 's Hertogenbosch, the Netherlands.
4 Radboud University Medical Center, Department of Intensive Care, Nijmegen, the Netherlands.