Elstgeest, L E M
Brouwer, I A
Penninx, B WJ H
van Schoor, N M
Visser, M
Article History
Received: 2 March 2016
Revised: 13 September 2016
Accepted: 11 October 2016
First Online: 1 February 2017
Competing interests
: The authors declare no conflict of interest.