[1] University of South Carolina,Department of Health Services Policy & Management, Arnold School of Public Health
[2] Washington University in St. Louis,George Warren Brown School of Social Work
[3] University of Twente,Faculty of Behavioural, Management and Social Sciences (BMS), Health Technology & Services Research (HTSR)
[4] University of British Columbia,Centre for Health Evaluation and Outcome Sciences (CHÉOS), School of Population and Public Health
[5] Laval University,Department of Family Medicine and Emergency Medicine, Faculty of Medicine
[6] University of Calgary,Cumming School of Medicine
[7] University of Pennsylvania,Center for Clinical Epidemiology and Biostatistics
[8] University of Pennsylvania,Division of Gastroenterology
[9] University of Pennsylvania,Department of Biostatistics and Epidemiology