A Report of the Surgeon General: How Tobacco Smoke Causes Disease

via surgeongeneral.gov

A Report of the Surgeon General:
How Tobacco Smoke Causes Disease
http://www.surgeongeneral.gov/index.html

＜参考＞

たばこの煙、わずかでも肺損傷　米報告書が警告
http://smokefree.posterous.com/35885629

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