Laffont, Carole
De Cuyper, Carolien
Fromentin, Justine
Mortier, Virginie
De Keyser, Annick
Verplancke, Christa
Holsters, Marcelle
Goormachtig, Sofie
Frugier, Florian
Article History
Received: 13 April 2017
Accepted: 16 January 2018
First Online: 1 February 2018
Competing Interests
: The authors declare that they have no competing interests.