Michael Holick's Book

来源: 于 2014-10-08 09:53:39 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

"The Vitamin D Solution: A 3-Step Strategy to Cure Our Most Common Health Problems"

He writes about how to be out in the sun safely (to avoid skin cancer) and to get enough Vitamin D.