Prinsen, C. A. C. http://orcid.org/0000-0002-0956-3788
Mokkink, L. B. http://orcid.org/0000-0001-6489-2827
Bouter, L. M. http://orcid.org/0000-0002-2659-5482
Alonso, J. http://orcid.org/0000-0001-8627-9636
Patrick, D. L. http://orcid.org/0000-0003-0756-0492
de Vet, H. C. W. http://orcid.org/0000-0002-5454-2804
Terwee, C. B. http://orcid.org/0000-0003-4570-2826
Article History
Accepted: 23 January 2018
First Online: 12 February 2018
Compliance with ethical standards
:
: This article does not contain any studies with human participants performed by any of the authors.