title: Assessment of tobacco-specific N-nitrosamines in tobacco products.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004787:Environmental Pollution; D013058:Mass Spectrometry; D009602:Nitrosamines / Q000032:analysis*; D010947:Plants, Toxic; D012906:Smoke / Q000032:analysis*; D014026:Nicotiana / Q000032:analysis*
chemical_list: D009602:Nitrosamines; D012906:Smoke