title: Variation within global cigarette brands in tar, nicotine, and certain nitrosamines: analytic study.
authors.forename: N
authors.initials: N
authors.lastname: Gray
authors.forename: D
authors.initials: D
authors.lastname: Zaridze
authors.forename: C
authors.initials: C
authors.lastname: Robertson
authors.forename: L
authors.initials: L
authors.lastname: Krivosheeva
authors.forename: N
authors.initials: N
authors.lastname: Sigacheva
authors.forename: P
authors.initials: P
authors.lastname: Boyle
mesh_terms: D001208:Asia; D001315:Australia; D005060:Europe; D006801:Humans; D008800:Mexico; D009538:Nicotine / Q000032:analysis*; D009602:Nitrosamines / Q000032:analysis*; D012907:Smoking; D013638:Tars / Q000032:analysis*; D019460:Tobacco Industry; D014481:United States
chemical_list: D009602:Nitrosamines; D013638:Tars; D009538:Nicotine