Received: 5 October 2019
Accepted: 29 April 2020
First Online: 11 May 2020
Ethics approval and consent to participate
: This study, within the scope of the Medical Research Involving Human Subjects Act, was approved by the Medical Ethics Review Committee of the Academic Medical Centre/University of Amsterdam (NL36778.018.1). All study subjects gave their written informed consent.
: Not applicable, all data are anonymously published. This study adheres to CONSORT guidelines.
: None of the authors have competing interests.