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A birth cohort study of viral infections in Vietnamese infants and children: study design, methods and characteristics of the cohort

Katherine L Anders*, Nguyet Minh Nguyen, Nguyen Thi Van Thuy, Nguyen Trong Hieu, Hoa L Nguyen, Nguyen Thi Hong Tham, Phan Thi Thanh Ha, Le Bich Lien, Nguyen Van Vinh Chau and Cameron P Simmons

BMC Public Health 2013, 13:937  doi:10.1186/1471-2458-13-937