Cephalosporin continues decline in first quarter.
D000900:Anti-Bacterial Agents / Q000191:economics* / Q000627:therapeutic use; D002511:Cephalosporins / Q000191:economics* / Q000627:therapeutic use; D003625:Data Collection; D016527:Drug Costs / Q000706:statistics & numerical data / Q000639:trends*; D006801:Humans; D014481:United States
D000900:Anti-Bacterial Agents; D002511:Cephalosporins