Giorgia Sulis1, Madhukar Pai2. 1. Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montréal, QC; McGill International TB Centre, McGill University, Montréal, QC. Electronic address: giorgia.sulis@mail.mcgill.ca. 2. Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montréal, QC; McGill International TB Centre, McGill University, Montréal, QC.