in vitro enzymatic degradation rate of ampicillin ( ab-pc ) in urine of patients with complicated urinary tract infection and its protective effect of dicloxacillin ( mdi-pc ) was studied using a specific fluorometric assay for aminobenzylpenicilloic acid ( ab-pa ) , which is converted from ab-pc by bacterial beta-lactamase .
C0042029
urinary tract infection
C0002680
ab-pc