Walter, Margot
Kamphuis, Sylvia
van Pelt, Philomine
de Vroed, Annemarie
Hazes, Johanna M. W.
Article History
Received: 10 April 2018
Accepted: 24 July 2018
First Online: 3 August 2018
Ethics approval and consent to participate
: This study was approved by the medical ethical committee of the ErasmusMC (MEC 2015–224). All participants and their parents (if age < 18 yrs) gave written informed consent before inclusion.
: Not applicable.
: The authors declare that they have no competing interests.
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