The activity of ampicillin against Escherichia coli.
D000667:Ampicillin; D004926:Escherichia coli / Q000494:pharmacology*; D010406:Penicillins / Q000494:pharmacology*
D010406:Penicillins; D000667:Ampicillin
ESCHERICHIA COLI/pharmacology; PENICILLIN/pharmacology