1. Tuberculosis Program Evaluation and Research Unit, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
2. Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
3. McGill International Tuberculosis Centre, Montréal, Québec, Canada
4. Department of Medicine, McGill University, Montréal, Québec, Canada