title: Letter: Quinine and chloroquine antagonism in falciparum malaria.
mesh_terms: D002738:Chloroquine / Q000037:antagonists & inhibitors* / Q000627:therapeutic use; D006801:Humans; D008288:Malaria / Q000188:drug therapy*; D010963:Plasmodium falciparum; D011803:Quinine / Q000037:antagonists & inhibitors* / Q000627:therapeutic use
chemical_list: D002738:Chloroquine; D011803:Quinine