1Centre for Health and Policy Studies, University of Calgary, Calgary, Alberta, Canada
2Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
3Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
4Department of Medicine, University of Calgary, Calgary, Alberta, Canada
5Victorian Department of Human Services, Australia
6Health Care Evaluation Unit, Institut Universitaire de Médecine Sociale et Préventive, University of Lausanne, Switzerland
7Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada
8Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada