| http://www.w3.org/ns/prov#value | - Department epidemiologists looked at more than a dozen factors including each mother???s place of conception and current address; drinking water source (municipal and well); proximity to active oil and gas wells; proximity to each other; the age, health, and family history of the mothers; the mother???s use of medications, supplements, tobacco, alcohol, caffeine and other substances; each mother??
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