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Solar UV doses of young Americans and vitamin D3 production.
Godar DE, Pope SJ, Grant WB, Holick MF. Godar DE, et al. Among authors: grant wb. Environ Health Perspect. 2012 Jan;120(1):139-43. doi: 10.1289/ehp.1003195. Epub 2011 Aug 18. Environ Health Perspect. 2012. PMID: 21852226 Free PMC article.