Elsman, Ellen B. M. http://orcid.org/0000-0002-0680-6430
van Nispen, Ruth M. A. http://orcid.org/0000-0003-1227-1177
van Rens, Gerardus H. M. B. http://orcid.org/0000-0002-3897-763X
Funding for this research was provided by:
Royal Dutch Visio
Article History
Accepted: 18 October 2019
First Online: 31 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study protocol was approved by the Medical Ethical Committee of the VU University Medical Center, Amsterdam, the Netherlands. All procedures performed in the study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.