title: A new screening method for proof of R factors transfer.
mesh_terms: D002675:Child, Preschool; D002701:Chloramphenicol / Q000494:pharmacology; D003227:Conjugation, Genetic; D003604:Czechoslovakia; D004352:Drug Resistance, Microbial; D004755:Enterobacteriaceae / Q000187:drug effects*; D004756:Enterobacteriaceae Infections / Q000382:microbiology; D004926:Escherichia coli / Q000187:drug effects; D005069:Evaluation Studies as Topic; D005111:Extrachromosomal Inheritance; D005260:Female; D006801:Humans; D007223:Infant; D007612:Kanamycin / Q000494:pharmacology; D008826:Microbial Sensitivity Tests / Q000295:instrumentation / Q000379:methods*; D009268:Nalidixic Acid / Q000494:pharmacology; D009355:Neomycin / Q000494:pharmacology; D011247:Pregnancy; D012760:Shigella / Q000187:drug effects; D013307:Streptomycin / Q000494:pharmacology; D013449:Sulfonamides / Q000494:pharmacology; D013752:Tetracycline / Q000494:pharmacology
chemical_list: D013449:Sulfonamides; D009268:Nalidixic Acid; D007612:Kanamycin; D002701:Chloramphenicol; D013752:Tetracycline; D009355:Neomycin; D013307:Streptomycin