Indigenous evolution of Plasmodium falciparum pyrimethamine resistance multiple times in Africa. - Mita T; Tanabe K; Takahashi N; Culleton R; Ndounga M; Dzodzomenyo M; Akhwale WS; Kaneko A; Kobayakawa T; Mita, Toshihiro; Tanabe, Kazuyuki; Takahashi, Nobuyuki; et al. (Journal of Antimicrobial Chemotherapy (JAC), 2009)