送交者: Enlighten 于 2005-5-23, 16:58:11:

http://www.skincancer.org/documents/VitaminDArticle.pdf
On this site
http://www.skincancer.org/

But since it's a skin cancer site, it might bias toward emphasizing the risk of skin cancer while de-emphasizing the benefits of sunshine. So do your own research.

• Thanks. But I think Skin Cancer is not a serious - cornbug (50 bytes) 2005-5-23, 17:03:59

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