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3. Molecular characterization of two beta-lactamase-specifying plasmids isolated from Neisseria gonorrhoeae. Roberts M, Elwell LP, Falkow S. J Bacteriol; 1977 Aug; 131(2):557-63. PubMed ID: 407214 [Abstract] [Full Text] [Related]
5. Molecular characterization of a plasmid specifying ampicillin resistance and its relationship to other R factors from Haemophilus influenzae. Laufs R, Kaulfers PM. J Gen Microbiol; 1977 Dec; 103(2):277-86. PubMed ID: 304471 [No Abstract] [Full Text] [Related]