title: Malaria--a persistent threat.
mesh_terms: D002738:Chloroquine / Q000627:therapeutic use; D004352:Drug Resistance, Microbial; D006801:Humans; D008288:Malaria / Q000188:drug therapy / Q000517:prevention & control; D008887:Military Medicine; D009032:Mosquito Control; D010963:Plasmodium falciparum; D011803:Quinine / Q000627:therapeutic use; D014481:United States
chemical_list: D002738:Chloroquine; D011803:Quinine