1. Tuberculosis Program Evaluation and Research Unit, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
2. Tuberculosis Program Evaluation and Research Unit, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; and Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada
3. Tuberculosis Program Evaluation and Research Unit, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada; and Provincial Program Development
and Disease Control Branch, Alberta Health and Wellness, Edmonton, Alberta, Canada