Hol, Jeroen C. http://orcid.org/0000-0003-4481-7250
van Oostendorp, Stefan E. http://orcid.org/0000-0002-6969-7956
Tuynman, Jurriaan B. http://orcid.org/0000-0001-5952-8000
Sietses, Colin http://orcid.org/0000-0001-7777-1688
Article History
Received: 9 June 2019
Accepted: 12 September 2019
First Online: 10 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Ethics Committees of the participating centers. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was not required for this type of study.