Backx, Annemiek Petronella Maria http://orcid.org/0000-0003-2482-2933
Spooren, Annemie Irene Frans
Bongers-Janssen, Helena Maria Henrika
Bouwsema, Hanneke
Article History
Received: 4 July 2017
Revised: 13 March 2018
Accepted: 14 March 2018
First Online: 27 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.