|New research has provided further evidence of a link between mothers who smoke during pregnancy and poor infant health.
The study conducted by researchers at the March of Dimes California Research Division and institutes in Norway, Holland and Texas examined serum samples collected from around 500 pregnant women between 2003 and 2005 - some of whom smoked and some of whom did not.
Uniquely, the study did not rely upon the women to reveal whether they smoked or not during their pregnancy but instead measured for the presence of toxic substances in their blood.
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