title: R1 strain of tubercle bacillus; its dissociation and virulence of variants in normal and silicotic guinea pigs.
authors.forename: W
authors.initials: W
authors.lastname: STEENKEN
authors.forename: L U
authors.initials: LU
authors.lastname: GARDNER
mesh_terms: D000818:Animals; D001407:Bacillus; D006094:Gram-Positive Bacteria; D006168:Guinea Pigs; D009169:Mycobacterium tuberculosis; D011009:Pneumoconiosis; D013180:Sprains and Strains; D014376:Tuberculosis; D014774:Virulence