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Abbreviations: LAMP = Loop-mediated Isothermal Amplification assay; FM = fluorescence microscopy; MGIT = Mycobacteria Growth Indicator Tube; LJ = Lowenstein Jensen media; NALC-NaOH = n-acetyl-L-cysteine (NALC)—sodium hydroxide (NaOH). a Preference was given to investigations for ‘sputum 1’ in case of inadequate volume or salivary specimen of one or more samples, since culture results were the predefined reference standard.
