Schnabel, Ronny
Fijten, Rianne
Smolinska, Agnieszka
Dallinga, Jan
Boumans, Marie-Louise
Stobberingh, Ellen
Boots, Agnes
Roekaerts, Paul
Bergmans, Dennis
van Schooten, Frederik Jan
Article History
Received: 1 July 2015
Accepted: 27 October 2015
First Online: 26 November 2015
Competing interests
: The authors declare no competing financial interests.