An apparent decline in the efficacy of small doses of chloroquine in suppressing malaria parasitaemias in semi-immune African schoolchildren.
D000293:Adolescent; D002648:Child; D002738:Chloroquine / Q000008:administration & dosage*; D006801:Humans; D008288:Malaria / Q000276:immunology / Q000517:prevention & control*; D013636:Tanzania
D002738:Chloroquine