1 Lifelong Learning, Education and Assessment Research Network (LEARN), University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands.
2 Department of Critical Care, University Medical Centre Groningen, Groningen, the Netherlands.
3 Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands.
4 Department of Obstetrics and Gynaecology, University Medical Centre Groningen, Groningen, the Netherlands.