Transmission-blocking activities of artesunate, chloroquine, and methylene blue on Plasmodium vivax gametocytes by Chaumeau, V, Wasisakun, P, Watson, JA, Oo, T, Aryalamloed, S, Sue, MP, Htoo, GN, Tha, NM, Archusuksan, L, Sawasdichai, S, Gornsawun, G, Mehra, S, White, NJ, Nosten, FH