van den Berg, P. http://orcid.org/0000-0002-3791-5816
van Haard, P.M.M.
Geusens, P.P.
van den Bergh, J.P.
Schweitzer, D.H.
Article History
Received: 10 January 2019
Accepted: 13 May 2019
First Online: 25 May 2019
Compliance with ethical standards
:
: The study was carried out in accordance with the declaration of Helsinki and the guidelines of the International Conference on Harmonization Good Clinical Practice (GCP) after a certificate of no objection approved by the regional Medical Ethical Review Board (METC Zuidwest Holland) no. NL 17.109.
: None.