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Temporal trends in preterm birth (panel A), small-for-gestational age births (SGA, panel B) and perinatal mortality (panel C) in Kaniyambadi (KB) and Nova Scotia (NS), 1986 to 2005. SGA-I refers to SGA births defined by an Indian fetal growth standard [26], while SGA-C refers to SGA births defined using a Canadian standard [25].
