Household trends in access to improved water sources and sanitation facilities in Vietnam and associated factors: findings from the Multiple Indicator Cluster Surveys, 2000–2011
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Le Thi Hoan | Hoang Van Minh | Juhwan Oh | Tran Thi Tuyet-Hanh | Jong-Koo Lee | T. K. Long | You-Seon Nam | Chul Ou Lee