title: Nicotine in smokers, non-smokers and room air.
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D001554:Benzene; D003201:Computers; D006801:Humans; D013058:Mass Spectrometry; D008722:Methods; D008832:Microchemistry; D009538:Nicotine / Q000032:analysis / Q000378:metabolism / Q000652:urine*; D011725:Pyridines / Q000032:analysis; D012907:Smoking; D013997:Time Factors
chemical_list: D011725:Pyridines; D009538:Nicotine; D001554:Benzene