title: The Gram stain and the etiology of lobar pneumonia, an historical note.
mesh_terms: D004396:Coloring Agents; D005840:Gentian Violet; D006801:Humans; D010619:Phenazines; D011014:Pneumonia / Q000209:etiology*; D011018:Pneumonia, Pneumococcal / Q000209:etiology*; D013194:Staining and Labeling / Q000266:history*
chemical_list: D004396:Coloring Agents; C035863:Gram's stain; D010619:Phenazines; D005840:Gentian Violet
keywords: PNEUMONIA, LOBAR/etiology; STAINS AND STAINING/history