Etiology of broncholithiasis.
D001980:Bronchi; D001982:Bronchial Diseases; D002137:Calculi / Q000209:etiology*; D004194:Disease; D006660:Histoplasmosis / Q000150:complications*; D006801:Humans; D009615:Nocardia; D009617:Nocardia Infections / Q000150:complications*
BRONCHI/diseases; CALCULI/etiology; HISTOPLASMOSIS/complications; NOCARDIA INFECTIONS/complications