Funding for this research was provided by:
ZonMw (12501 0001)
Received: 28 May 2018
Accepted: 13 February 2019
First Online: 26 February 2019
Ethics approval and consent to participate
: The study protocol was approved by the Medical Ethics Committee of the Academic Medical Center of Amsterdam (MEC 08/064). Participants were included after providing informed and written consent.
: Not applicable.
: The authors declare that they have no competing interests.
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