title: Malaria prophylactic drug trial in Western Nigeria.
mesh_terms: D002648:Child; D002738:Chloroquine / Q000627:therapeutic use*; D004341:Drug Evaluation; D006801:Humans; D008288:Malaria / Q000517:prevention & control*; D009549:Nigeria; D011739:Pyrimethamine / Q000627:therapeutic use*
chemical_list: D002738:Chloroquine; D011739:Pyrimethamine