title: Gram-negative urinary tract isolates in southwestern Ontario.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects / Q000302:isolation & purification*; D004926:Escherichia coli / Q000302:isolation & purification; D005260:Female; D006801:Humans; D007612:Kanamycin / Q000494:pharmacology; D007709:Klebsiella / Q000302:isolation & purification; D008297:Male; D008826:Microbial Sensitivity Tests; D009268:Nalidixic Acid / Q000494:pharmacology; D009582:Nitrofurantoin / Q000494:pharmacology; D009864:Ontario; D010403:Penicillin Resistance; D011511:Proteus / Q000302:isolation & purification; D011513:Proteus mirabilis / Q000302:isolation & purification; D012706:Serratia marcescens / Q000302:isolation & purification; D013449:Sulfonamides / Q000494:pharmacology; D013752:Tetracycline / Q000494:pharmacology; D014556:Urine / Q000382:microbiology*
chemical_list: D013449:Sulfonamides; D009268:Nalidixic Acid; D007612:Kanamycin; D000667:Ampicillin; D009582:Nitrofurantoin; D013752:Tetracycline