Figure 1From: Retrospective observational study of diagnostic accuracy of the Xpert® MTB/RIF assay on fiberoptic bronchoscopy sampling for early diagnosis of smear-negative or sputum-scarce patients with suspected tuberculosis Flow diagram of patients included in the study. BA: bronchial aspirate; BAL: bronchoalveolar lavage; SM: smear microscopy; GX: Xpert®MTB/RIF assay; NTM: nontuberculous mycobacteria; TB: tuberculosis.Back to article page