title: The cephalosporins: past and future.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D002228:Carbenicillin / Q000494:pharmacology; D002511:Cephalosporins / Q000494:pharmacology / Q000627:therapeutic use; D002512:Cephalothin / Q000494:pharmacology; D055598:Chemical Phenomena; D002621:Chemistry; D006801:Humans; D008826:Microbial Sensitivity Tests; D013329:Structure-Activity Relationship
chemical_list: D002511:Cephalosporins; D000667:Ampicillin; D002228:Carbenicillin; D002512:Cephalothin