Chloroquine-resistant malaria in Singapore.
D002738:Chloroquine / Q000494:pharmacology / Q000627:therapeutic use*; D004352:Drug Resistance, Microbial; D006801:Humans; D008288:Malaria / Q000188:drug therapy*; D008297:Male; D010963:Plasmodium falciparum / Q000187:drug effects; D012846:Singapore
D002738:Chloroquine