Liu, Ning Qing
De Marchi, Tommaso
Timmermans, Annemieke
Trapman-Jansen, Anita M. A. C.
Foekens, Renée
Look, Maxime P.
Smid, Marcel
van Deurzen, Carolien H. M.
Span, Paul N.
Sweep, Fred C. G. J.
Brask, Julie Benedicte
Timmermans-Wielenga, Vera
Foekens, John A.
Martens, John W. M.
Umar, Arzu
Article History
Received: 9 February 2016
Accepted: 27 July 2016
First Online: 25 August 2016
Competing interests
: The authors declare no competing financial interests.