1. Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University , Bangkok 10400 , Thailand
2. Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford , OX3 7LJ , UK
3. Malaria Consortium , London , UK
4. Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University , Bangkok 10400 , Thailand