| http://www.w3.org/ns/prov#value | - These data provide a preview of what may befall other economically developing populations, such as rural India and Sub-Saharan Africa.Methods and ProceduresTop of pageAbstractIntroductionMethods and ProceduresResultsDiscussionAcknowledgmentDisclosureREFERENCESStudy populationIn 1991, the China National Hypertension Survey used a multistage random cluster sampling design to select a representative
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