Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.
Contributors MG wrote the first draft of the paper, reviewed it critically for important intellectual content and gave the final approval of the version to be published. AH and RV did a critical revision of the manuscript, and gave the final approval of the version to be published.
Competing interests None.
Ethics approval Approval of the study was obtained from the Central Committee on Research involving Human Subjects in the Netherlands, the Medical Ethical Committees of the participating hospitals and from the Registration Committee of the Municipality of Amsterdam.
Provenance and peer review Not commissioned; internally peer reviewed.