title: Sputum Gram stain controls.
authors.forename: G
authors.initials: G
authors.lastname: Schiff
mesh_terms: D005840:Gentian Violet; D006801:Humans; D010619:Phenazines; D013183:Sputum / Q000382:microbiology*; D013194:Staining and Labeling / Q000592:standards*
chemical_list: C035863:Gram's stain; D010619:Phenazines; D005840:Gentian Violet