In vitro and in vivo synergism of mixtures of penicillins.
D000818:Animals; D004357:Drug Synergism; D004754:Enterobacter / Q000187:drug effects*; D051379:Mice; D010406:Penicillins / Q000494:pharmacology*; D012760:Shigella / Q000187:drug effects*
D010406:Penicillins