Deen Jacqueline L, Harris Eva, Wills Bridget, Balmaseda Angel, Hammond Samantha Nadia, Rocha Crisanta, Dung Nguyen Minh, Hung Nguyen Thanh, Hien Tran Tinh, Farrar Jeremy J
International Vaccine Institute, Kwanak PO Box 14, Seoul, Republic of Korea.
Lancet. 2006 Jul 8;368(9530):170-3. doi: 10.1016/S0140-6736(06)69006-5.