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TB among aboriginal Canadians [Correction] CMAJ 2000;162(13):1807 The third sentence in the second paragraph of a recent letter to the editor from Leo Kahana1 contained a copyediting error. It should have read: "In controlled studies the protective efficacy varies from 57% to more than 75%, and it is not clear that averaging such disparate results by meta-analysis is of any significance."2 Kahana's affiliation should have been given as Department of Medicine, McMaster University, Hamilton, Ont. The online version is correct. References
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