The correct answer is actually:

According to : "The average level of cotinine (metabolized nicotine) among nonsmokers increased by 456% and the average levels of the carcinogen NNAL increased by 112% after four hours of exposure to secondhand smoke in a smoke-filled casino with a "sophisticated" ventilation system."

Incidentally, the Reynolds/Lorillard lawsuit seeks to have Drs. Benowitz, Henningfield, and Samet dismissed from the FDA's TPSAC (Tobacco Product Scientific Advisory Committee) panel because of these conflicts of interest. While these conflicts do not preclude the participation of these scientists as authors of the Surgeon General's report, they absolutely must be disclosed to the public.

LAST：Electronic Cigarette halo E Cig e cig |NEXT：510 pcc starter kit colorful 510 atomizer 510+ kits