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68 percent got vitamin D above 40 ng by regular use of tanning bed - July 2013

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ID Name Comment Uploaded Size Downloads
2763 UVB_Exposure raises vitamin D levels.pdf PDF 2013 admin 10 Jul, 2013 20:29 185.81 Kb 469
2762 Grassroots tanning.jpg admin 10 Jul, 2013 20:27 40.11 Kb 2393
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