World malaria situation 1983. Malaria Action Programme, World Health Organization, Geneva.
D003431:Cross-Cultural Comparison; D003430:Cross-Sectional Studies; D004351:Drug Resistance; D006801:Humans; D008288:Malaria / Q000453:epidemiology* / Q000517:prevention & control; D010963:Plasmodium falciparum / Q000187:drug effects