1. A Comparison of Twice- Versus Once-Weekly Supervision During Pulmonary Rehabilitation in Chronic Obstructive Pulmonary Disease 
Brenda O’Neill, PhD, AnneMarie McKevitt, MCSP, Sara Rafferty, RCN, Judy M. Bradley, PhD, Doreen Johnston, MCSP, Ian Bradbury, PhD, Joseph McMahon, FRCP 
Archives of Physical Medicine and Rehabilitation 
Volume 88, Issue 2, Pages (February 2007)
DOI: /j.apmr
Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2. Fig 1 Study design. Abbreviation: PR, pulmonary rehabilitation.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3. Fig 2
Change in scores in group 1 (once-weekly supervision) and group 2 (twice-weekly supervision) for all outcome measures with time: baseline, after 6 weeks of pulmonary rehabilitation, 2 months after completion of pulmonary rehabilitation, and 6 months after completion of pulmonary rehabilitation.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions