1. Department of Family Practice; University of British Columbia; Vancouver BC Canada
2. The Dartmouth Institute for Health Policy and Clinical Practice; Dartmouth College; Hanover NH USA
3. Centre for Rural Health Research and Applied Policy Research Unit; Vancouver BC Canada
4. School of Public Health and Health Systems; University of Waterloo; Waterloo ON Canada
5. School of Population and Public Health; University of British Columbia; Vancouver BC Canada
6. University of British Columbia School of Population and Public Health; Vancouver BC Canada
7. Centre for Health Evaluation and Outcomes Sciences; Vancouver BC Canada
8. Centre for Clinical Epidemiology and Evaluation; Vancouver BC Canada
9. BC Children's Hospital Research Institute; Vancouver BC Canada