A randomized comparison of dihydroartemisinin-piperaquine and artesunate-amodiaquine combined with primaquine for radical treatment of vivax malaria in Sumatera, Indonesia. by Pasaribu, A, Chokejindachai, W, Sirivichayakul, C, Tanomsing, N, Chavez, I, Tjitra, E, Pasaribu, S, Imwong, M, White, N, Dondorp, A