Factors in low birth weight.
Shennan
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AT
D000886:Anthropometry / Q000379:methods; D015982:Bias; D001724:Birth Weight; D002170:Canada; D004641:Emigration and Immigration; D006801:Humans; D007229:Infant Welfare / Q000639:trends*; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D012307:Risk Factors