van Dijk, S. E. M.
Pols, A. D.
Adriaanse, M. C.
van Marwijk, H. W. J.
van Tulder, M. W.
Bosmans, J. E.
Article History
Received: 3 February 2021
Accepted: 10 June 2021
First Online: 13 August 2021
Declarations
:
: The study was performed in accordance with the declaration of Helsinki (2008) and the Dutch Medical Research involving Human Subjects Act (WMO). The protocol was approved by the medical ethics committee of the VU University Medical Centre (NL39261.029.12, registration number 2012/223), and registered in the Dutch Trial Register (NTR3715ExternalRef removed). Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.