title: [Studies on cephalosporin. II. The relation between alpha-substituted phenylacetamidocephalosporanic acids and their antibacterial activity].
mesh_terms: D002511:Cephalosporins / Q000138:chemical synthesis / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects*; D013210:Staphylococcus / Q000187:drug effects*
chemical_list: D002511:Cephalosporins