Scharmga, A.
Keller, K. K.
Peters, M.
van Tubergen, A.
van den Bergh, J. P.
van Rietbergen, B.
Weijers, R.
Loeffen, D.
Hauge, E. M.
Geusens, P.
Article History
Received: 13 April 2017
Accepted: 24 July 2017
First Online: 21 August 2017
Competing Interests
: Bert van Rietbergen is a consultant for Scanco Medical AG. The other authors declare no conflicts of interest.