Adherence to 14-day radical cure for Plasmodium vivax malaria in Papua, Indonesia: a mixed-methods study by Rahmalia, A, Poespoprodjo, JR, Landuwulang, CUR, Ronse, M, Kenangalem, E, Burdam, FH, Thriemer, K, Devine, A, Price, RN, Peeters Grietens, K, Ley, B, Gryseels, C