title: Effect of four different types of single-dose treatment with chloroquine and with chloroquine and pyrimethamine on Plasmodium falciparum infections in a semi-immune population in northern Nigeria.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002738:Chloroquine / Q000008:administration & dosage* / Q000627:therapeutic use; D004338:Drug Combinations; D006801:Humans; D007223:Infant; D008288:Malaria / Q000188:drug therapy*; D009549:Nigeria; D010963:Plasmodium falciparum; D011739:Pyrimethamine / Q000008:administration & dosage* / Q000627:therapeutic use
chemical_list: D004338:Drug Combinations; D002738:Chloroquine; D011739:Pyrimethamine