1. The Pittsburgh Rehabilitation Participation Scale: reliability and validity of a clinician- rated measure of participation in acute rehabilitation 1 
Eric J Lenze, MD, Michael C Munin, MD, Tanya Quear, BS, Mary Amanda Dew, PhD, Joan C Rogers, PhD, Amy E Begley, MA, Charles F Reynolds, MD 
Archives of Physical Medicine and Rehabilitation 
Volume 85, Issue 3, Pages (March 2004)
DOI: /j.apmr

2. Fig 1
Trajectory of mean PRPS scores over the first 9 days of hospitalization. Note that decreasing sample size is due to subjects being discharged or participation score unavailable that day. Graph is shown with standard error.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )