title: Collaborative study of the determination of tar and nicotine in cigarette smoke: 1970 study.
mesh_terms: D000704:Analysis of Variance; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation; D005163:Factor Analysis, Statistical; D005374:Filtration; D009538:Nicotine / Q000032:analysis*; D012906:Smoke / Q000032:analysis; D012907:Smoking; D013638:Tars / Q000032:analysis*
chemical_list: D012906:Smoke; D013638:Tars; D009538:Nicotine