Walter, Margot J. M.
Kuijper, T. M.
Hazes, J. M. W.
Weel, A. E.
Luime, J. J.
Article History
Received: 10 April 2018
Accepted: 13 July 2018
First Online: 16 July 2018
Compliance with ethical standards
:
: All authors declare no conflicts of interest.
: The medical ethics committee at each participating center approved the study (METC 2006-252, trial protocol number 2006-005771-18).
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional 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.