5月31日は世界禁煙デー
More U.S. Households Adopting Smoke-free Home Rules
World No Tobacco Day is May 31
Thursday, May 24, 2007
http://www.cdc.gov/od/oc/media/pressrel/2007/r070524.htm
MMWR May 25, 2007 / 56(20) ;497-500
13-15才の学生の受動喫煙 世界、2000-2007
Exposure to Secondhand Smoke Among Students Aged 13--15 Years ---
Worldwide, 2000--2007
http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5620a2.htm
