Validez diagnóstica Del GeneXpert Para Mycobacterium Tuberculosis Y Prueba De Resistencia a Rifampicina: Diagnostic Contribution of the Gene Xpert MTB RIF in Sample for Fibrobroncoscopy. Alerta (San Salvador) 2021, 4 (3), 176-180. https://doi.org/10.5377/alerta.v4i3.8829.