title: When low tar cigarettes yield high tar: cigarette filter ventilation hole blocking and its detection.
mesh_terms: D001519:Behavior; D005260:Female; D006801:Humans; D008297:Male; D010947:Plants, Toxic; D012907:Smoking; D013638:Tars / Q000032:analysis*; D014026:Nicotiana
chemical_list: D013638:Tars