1. Cancer-Related Pain and Disability: A Longitudinal Study
Hsiao-Lan Wang, PhD, RN, CMSRN, HFS, Kurt Kroenke, MD, Jingwei Wu, MS, Wanzhu Tu, PhD, Dale Theobald, MD, PhD, Susan M. Rawl, PhD, RN, FAAN 
Journal of Pain and Symptom Management 
Volume 42, Issue 6, Pages (December 2011)
DOI: /j.jpainsymman
Copyright © 2011 U.S. Cancer Pain Relief Committee Terms and Conditions

2. Fig. 1
Repeated measures for examining whether preceding cancer-related pain change predicts subsequent disability over 12 months.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2011 U.S. Cancer Pain Relief Committee Terms and Conditions