Cigarette secrets.
D016902:Air Pollution, Indoor / Q000032:analysis*; D000818:Animals; D002273:Carcinogens / Q000032:analysis*; D006801:Humans; D010947:Plants, Toxic; D012907:Smoking; D014026:Nicotiana / Q000737:chemistry*; D019460:Tobacco Industry; D014028:Tobacco Smoke Pollution / Q000032:analysis*
D002273:Carcinogens; D014028:Tobacco Smoke Pollution