1. A Systematic Review of Instruments Assessing Participation: Challenges in Defining Participation 
Isaline C. Eyssen, MSc, OT, Martijn P. Steultjens, PhD, Joost Dekker, PhD, Caroline B. Terwee, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 92, Issue 6, Pages (June 2011)
DOI: /j.apmr
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1 Inclusion of abstracts, articles, and instruments.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2 Classification of the items in the participation domains.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions