Polycyclic hydrocarbons extracted from tobacco:  the effect upon total quantities found in smoking.
D006801:Humans; D006838:Hydrocarbons / Q000032:analysis*; D011083:Polycyclic Compounds; D012907:Smoking; D014026:Nicotiana
D006838:Hydrocarbons; D011083:Polycyclic Compounds
HYDROCARBONS/determination; TOBACCO