Received: 2 December 2020
Accepted: 13 April 2021
First Online: 28 April 2021
: The Medical Ethics Review Board of the UMCG concluded that this study was not subject to the Medical Research Involving Human Subjects Act. Participants participated voluntary in this study. All participants provided written informed consent. They could withdraw at any time without any consequence or penalty. Data were collected and analysed anonymously.
: Not applicable.
: The authors declare that they have no competing interests.