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12. Disappearance of the covalently closed circular cryptic plasmid PO-2 in Salmonella pullorum MS35 containing F77. Stiffler PW, Schoenhard DE. Can J Microbiol; 1974 Apr 18; 20(4):551-7. PubMed ID: 4597647 [No Abstract] [Full Text] [Related]
13. Evidence for a composite state of an F'his, gnd element and a cryptic plasmid in a derivative of Salmonella typhimurium LT2. Oliver DR, Manis JJ, Whitfield HJ. J Bacteriol; 1974 Jul 18; 119(1):192-201. PubMed ID: 4366251 [Abstract] [Full Text] [Related]
15. Extrachromosomal elements in group N streptococci. Cords BR, McKay LL, Guerry P. J Bacteriol; 1974 Mar 18; 117(3):1149-52. PubMed ID: 4205191 [Abstract] [Full Text] [Related]