1. A. Townsend, PhD, is Research Associate, The W. Maurice Young Centre for Applied Ethics, University of British Columbia, 235-6356 Agricultural Rd, Klinck Building, Vancouver, British Columbia, Canada V6T 1Z2, and Affiliate Researcher, Arthritis Research Centre of Canada, Vancouver, British Columbia, Canada.
2. S.M. Cox, PhD, is Assistant Professor, The W. Maurice Young Centre for Applied Ethics, University of British Columbia.
3. L.C. Li, PT, PhD, is Assistant Professor and Harold Robinson/Arthritis Society Chair in Arthritic Diseases, Department of Physical Therapy, University of British Columbia, and Research Scientist, Arthritis Research Centre of Canada, Vancouver, British Columbia, Canada.