Biter, L. U.
Leeman, M.
Friskes, I.
der Kinderen, M.
Apers, J. A.
Dunkelgrun, M.
Zengerink, J. F.
Smulders, J. F.
Article History
First Online: 13 March 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies 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. The study protocol was approved by the institutional review board (IRB) and the regional Medical Research Ethics Committee TWOR, Rotterdam, the Netherlands (protocol number 2011-48).
: Informed consent was obtained from all individual participants included in the study.