title: Occurrence and analysis of the composition of R factors in E. coli strains from urogenital infections for a period of one year.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D002701:Chloramphenicol / Q000494:pharmacology; D003091:Colistin / Q000494:pharmacology; D003227:Conjugation, Genetic; D003604:Czechoslovakia; D004269:DNA, Bacterial; D004926:Escherichia coli / Q000187:drug effects* / Q000302:isolation & purification; D005111:Extrachromosomal Inheritance; D006801:Humans; D007612:Kanamycin / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D009268:Nalidixic Acid / Q000494:pharmacology; D010403:Penicillin Resistance; D013307:Streptomycin / Q000494:pharmacology; D013449:Sulfonamides / Q000494:pharmacology; D013752:Tetracycline / Q000494:pharmacology; D014552:Urinary Tract Infections / Q000382:microbiology*
chemical_list: D004269:DNA, Bacterial; D013449:Sulfonamides; D009268:Nalidixic Acid; D007612:Kanamycin; D002701:Chloramphenicol; D000667:Ampicillin; D013752:Tetracycline; D013307:Streptomycin; D003091:Colistin