Author(s): Robert J Commons, Megha Rajasekhar, Peta Edler, Tesfay Abreha, Ghulam R Awab, Prof J Kevin Baird, Bridget E Barber, Cindy S Chu, Prof Liwang Cui, André Daher, Lilia Gonzalez-Ceron, Matthew J Grigg, Jimee Hwang, Harin Karunajeewa, Prof Marcus V G Lacerda, , Simone Ladeia-Andrade, Kartini Lidia, Prof Alejandro Llanos-Cuentas, Rhea J Longley, Dhelio B Pereira, Ayodhia P Pasaribu, Prof Sasithon Pukrittayakamee, Komal R Rijal, Prof Inge Sutanto, Walter R J Taylor, Pham V Thanh, Kamala Thriemer, , José Luiz F Vieira, James A Watson, Lina M Zuluaga-Idarraga, Nicholas J White, Prof Philippe J Guerin, Prof Julie A Simpson, Prof Ric N Price, , on behalf of theWorldWide Antimalarial Resistance Network (WWARN) Vivax Primaquine Dosing Efficacy, Tolerability and Safety Study Group