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. 2018 Nov 24;69(6):1027–1035. doi: 10.1093/cid/ciy1001

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Figure 1. — Study flow chart. Index case: first tuberculosis case identified in the household. ^aMissing 2nd TST: 135 cases; ^bMissing 3rd TST: 33 cases and 26 people who missed the 2nd TST showed up. Abbreviation: TST, tuberculin skin test.