scientific article
author: Jeremy Farrar, Nguyen Van Vinh Chau, Tran Tinh Hien, Tran Thi Hong Chau, Constance Schultsz, Ngo Thi Hoa, James I Campbell, Tran Vu Thieu Nga, Song Diep To, Dinh Xuan Sinh, Nguyen Thi Hoang Mai, Tran Thi Thu Nga
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