1. Scientific Institute for Quality of Healthcare, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands; Department of Manual Therapy, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium; Pain in Motion International Research Group (www.paininmotion.be), Vrije Universiteit Brussel, Brussels, Belgium; and Practice Physiotherapy and Manual Therapy, Heeswijk
2. Department of Public Health and Research, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
3. Department of Manual Therapy, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium; SOMT University of Physiotherapy, Amersfoort, The Netherlands; Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium. [Oostendorp RAB, Elvers JWH, van Trijffel E. Concept analysis of clini