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Archived Comments for: Sensitivity of direct versus concentrated sputum smear microscopy in HIV-infected patients suspected of having pulmonary tuberculosis

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  1. Multiple same references in bibilography

    Rajnish Joshi, MGIMS Sevagram

    12 May 2010

    This article has 44 references.
    The reference "Pai M, O'Brien R: Tuberculosis diagnostics trials: do they lack
    methodological rigor? Expert Rev Mol Diagn 2006, 6:509-514." is however numbered thrice as number 21, 36, and 41.

    Probably calling for more editorial attention !!

    Competing interests

    None declared