title: The demonstration and significance of synergism between  -lactam antibiotics.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D002228:Carbenicillin / Q000494:pharmacology; D002509:Cephaloridine / Q000494:pharmacology; D002511:Cephalosporins / Q000494:pharmacology*; D002512:Cephalothin / Q000494:pharmacology; D003023:Cloxacillin / Q000494:pharmacology; D004357:Drug Synergism; D004754:Enterobacter / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects; D008712:Methicillin / Q000494:pharmacology; D010400:Penicillin G / Q000494:pharmacology; D010404:Penicillin V / Q000031:analogs & derivatives / Q000494:pharmacology; D010406:Penicillins / Q000494:pharmacology*; D011550:Pseudomonas aeruginosa / Q000187:drug effects
chemical_list: D002511:Cephalosporins; D010406:Penicillins; D000667:Ampicillin; D002228:Carbenicillin; D002509:Cephaloridine; D003023:Cloxacillin; D010400:Penicillin G; D008712:Methicillin; D002512:Cephalothin; D010404:Penicillin V