van Eggermond, Anna M
Schaapveld, Michael
Janus, Cécile PM
de Boer, Jan Paul
Krol, Augustinus DG
Zijlstra, Josée M
van der Maazen, Richard WM
Kremer, Leontien C
van Leerdam, Monique E
Louwman, Marieke WJ
Visser, Otto
De Bruin, Marie L
Aleman, Berthe MP
van Leeuwen, Flora E
Article History
Received: 28 November 2016
Revised: 27 March 2017
Accepted: 25 May 2017
First Online: 20 June 2017
Competing interests
: The authors declare no conflict of interest.