[1] McGill Univ, Dept Epidemiol Biostat & Occupat Hlth, Montreal, PQ H3A 1A2, Canada
[2] McGill Int TB Ctr, Montreal, PQ, Canada
[3] TB PPM Learning Network, Montreal, PQ, Canada
[4] CITAMPlus, Lusaka, Zambia
[5] Harvard Med Sch, Dept Global Hlth & Social Med, Boston, MA 02115 USA