J Nutr. 2007 Feb;137(2):305-6.
Vitamin D deficiency in pregnancy: bringing the issues to light.
McCullough ML.
Epidemiology and Surveillance Research, American Cancer Society, Atlanta, GA 30329, USA. marji.mccullough@cancer.org
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PMID: 17237301 [PubMed - indexed for MEDLINE]
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