title: Investigation of the content and ratio of cotinine and nicotine-1'-N-oxide in the urine of smokers.
mesh_terms: D000328:Adult; D000368:Aged; D003367:Cotinine / Q000652:urine*; D003497:Cyclic N-Oxides / Q000652:urine*; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000652:urine*; D008175:Lung Neoplasms / Q000652:urine; D008297:Male; D008875:Middle Aged; D009538:Nicotine / Q000031:analogs & derivatives* / Q000652:urine; D011760:Pyrrolidinones / Q000652:urine*; D012907:Smoking
chemical_list: D003497:Cyclic N-Oxides; D011760:Pyrrolidinones; C024270:nicotine 1-N-oxide; D009538:Nicotine; D003367:Cotinine