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发表于 2010-9-4 10:31 PM
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本帖最后由 ranchgirl 于 2010-9-5 00:38 编辑
In health field, there is nothing absolute correct, and also there is nothing absolute wrong.
A lot of knowledge has been considered correct, now, proved wrong. Such as American heart association recommended low fat diet is a good example.
Interested people can do a Google search to find out. Too long and too complicated to discuss here. |
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