Trends in meningococcal disease.
D002140:California; D004352:Drug Resistance, Microbial; D006801:Humans; D008589:Meningococcal Infections / Q000188:drug therapy / Q000453:epidemiology*; D013449:Sulfonamides / Q000627:therapeutic use; D014481:United States
D013449:Sulfonamides