,
Hofstede, Stefanie N.
Gademan, Maaike G. J.
Stijnen, Theo
Nelissen, Rob G. H. H.
Marang- van de Mheen, Perla J.
Funding for this research was provided by:
Reumafonds (BP 12-3-401)
Article History
Received: 19 October 2017
Accepted: 23 February 2018
First Online: 2 March 2018
Ethics approval and consent to participate
: The Medical Ethical Committee of the Leiden University Medical Center (CME P15.043/SH/sh) confirmed on February 13 2015 that ethical approval for this type of study is not required under the Dutch Medical Research (Human Subjects) Act. The hospitals that supplied anonymous data obtained written informed consent from the study participants.
: Not applicable.
: The authors declare that they have no competing interests.
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