Sloothaak, D A M
Mirck, B
Punt, C J A
Bemelman, W A
van der Bilt, J D W
D’Hoore, A
Tanis, P J
Article History
Received: 14 March 2014
Revised: 20 May 2014
Accepted: 9 June 2014
First Online: 15 July 2014
Competing interests
: The authors declare no conflict of interest.