Seco, Celia Zazo
Oonk, Anne MM
Domínguez-Ruiz, María
Draaisma, Jos MT
Gandía, Marta
Oostrik, Jaap
Neveling, Kornelia
Kunst, Henricus PM
Hoefsloot, Lies H
del Castillo, Ignacio
Pennings, Ronald JE
Kremer, Hannie
Admiraal, Ronald JC
Schraders, Margit
Article History
Received: 5 November 2013
Revised: 20 March 2014
Accepted: 4 April 2014
First Online: 30 April 2014
Competing interests
: The authors declare no conflict of interest.