title: Analysis of a co-operative study in finding of mycobacteria.
abstract: Comparative examinations in finding of mycobacteria carried out in two laboratories of different countries show a superiority of one lab only in one of two series of specimens. That indicates that the results are dependent not only on methods used but also on other factors as the nature of the specimens and the conditions of transport. A critical evaluation is necessary.
mesh_terms: D001431:Bacteriological Techniques; D006801:Humans; D009169:Mycobacterium tuberculosis / Q000302:isolation & purification; D013183:Sputum / Q000382:microbiology*; D014397:Tuberculosis, Pulmonary / Q000382:microbiology*