Substantial clinical benefit for Neck Disability Index revisited: establishing the goal for treatment?
Journal article published in 2017 by
Roland D. Donk,
Andre L. M. Verbeek,
Wim I. M. Verhagen,
Hans Groenewoud,
Allard T. F. Hosman,
Ronald H. M. A. Bartels 
This paper is made freely available by the publisher.
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