Vergult, Sarah
Dheedene, Annelies
Meurs, Alfred
Faes, Fran
Isidor, Bertrand
Janssens, Sandra
Gautier, Agnès
Le Caignec, Cédric
Menten, Björn
Article History
Received: 4 December 2013
Revised: 13 June 2014
Accepted: 25 June 2014
First Online: 30 July 2014
Competing interests
: The authors declare no conflict of interest.