1. Dr. Puyat and Dr. Wong are with the Centre for Health Evaluation and Outcome Sciences, Providence Health Care, Vancouver, British Columbia, Canada. They are also with the School of Population and Public Health, University of British Columbia (UBC), Vancouver, where Dr. Kazanjian is affiliated. Dr. Goldner, who passed away on November 27, 2016, was with the Centre for Applied Research in Mental Health and Addiction, Simon Fraser University, Vancouver, at the time that this research was conducted.