Boland, Melinde R S
Kruis, Annemarije L
Huygens, Simone A
Tsiachristas, Apostolos
Assendelft, Willem J J
Gussekloo, Jacobijn
Blom, Coert M G
Chavannes, Niels H
Rutten-van Mölken, Maureen P M H
Article History
Received: 13 November 2014
Revised: 16 May 2015
Accepted: 11 June 2015
First Online: 17 December 2015
Competing interests
: The authors declare no conflict of interest.