van Vliet, Margo E. http://orcid.org/0000-0001-9646-8780
Kerkhoffs, Jean-Louis H.
Harteveld, Cornelis L.
Houwink, Elisa. J. F. http://orcid.org/0000-0002-9927-7266
Article History
Received: 7 August 2021
Revised: 10 May 2022
Accepted: 11 July 2022
First Online: 9 August 2022
Competing interests
: The authors declare no competing interests.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2000 [CitationRef removed].
: Informed consent was obtained from all patients and general practitioners included in the study. The local medical research and ethics committee of Leiden-Den Haag-Delft declared that this study was not within the scope of the Dutch Medical Research Involving Human Subjects Act (WMO, wet medisch-wetenschappelijk onderzoek met mensen). There was no animal research.