title: Persistent presence of acid-fast bacilli in pulmonary tuberculosis : possible implications for developing countries.
authors.forename: N
authors.initials: N
authors.lastname: Gupta
mesh_terms: D000995:Antitubercular Agents / Q000627:therapeutic use; D003906:Developing Countries; D006801:Humans; D009169:Mycobacterium tuberculosis / Q000302:isolation & purification*; D013183:Sputum / Q000382:microbiology*; D017211:Treatment Failure; D018088:Tuberculosis, Multidrug-Resistant / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology*; D014397:Tuberculosis, Pulmonary / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology*
chemical_list: D000995:Antitubercular Agents