scientific article published on 4 January 2011
author: Jeremy Farrar, Christiane Dolecek, Tran Tinh Hien, Nguyen Van Vinh Chau, Gordon Dougan, Kat Holt, James I Campbell, Stephen Baker, Duy Thanh Pham, Tran Vu Thieu Nga, Tran Thuy Chau, Nguyen Van Minh Hoang