title: Changing frequency in recovery of atypical mycobacteria.
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D009161:Mycobacterium / Q000302:isolation & purification*; D009164:Mycobacterium Infections / Q000453:epidemiology*; D009165:Mycobacterium Infections, Nontuberculous / Q000453:epidemiology*; D009170:Nontuberculous Mycobacteria / Q000302:isolation & purification*; D009825:Oklahoma; D012189:Retrospective Studies