Affiliation: | 1. The Institute of Population, Health and Development, 18 Alley 132 Hoa Bang Street, Cau Giay District, 10000, Hanoi, Vietnam 2. School of Public Health, The University of Texas, Houston, TX, USA 3. School of Medicine and Pharmacy, Vietnam National University-Hanoi, Hanoi, Vietnam 4. Center for Community Health Research and Development, Hanoi, Vietnam
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