title: [4 cases of pulmonary tuberculosis caused presumably by exogenous re-infection. Part 1. Report on cases 1 and 2].
mesh_terms: D000368:Aged; D003428:Cross Infection / Q000382:microbiology; D004352:Drug Resistance, Microbial; D005260:Female; D006801:Humans; D008875:Middle Aged; D009169:Mycobacterium tuberculosis / Q000187:drug effects*; D014397:Tuberculosis, Pulmonary / Q000188:drug therapy / Q000382:microbiology*