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1 Vitamin A status of 20- to 59-year-old adults living in Seoul and the metropolitan area, Korea
Sungah Kim, Young-Nam Kim, Youn-Ok Cho
Nutr Res Pract.2012;6(1):45-50.   Published online 2012 February 29     DOI: http://dx.doi.org/10.4162/nrp.2012.6.1.45
      

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