Efficacy of directly-observed chloroquine-primaquine treatment for uncomplicated acute Plasmodium vivax malaria in northeast Myanmar: A prospective open-label efficacy trial. by Xu, S, Zeng, W, Ngassa Mbenda, H, Liu, H, Chen, X, Xiang, Z, Li, C, Zhang, Y, Baird, J, Yang, Z, Cui, L