title: Cotinine excretion and daily cigarette smoking in habituated smokers.
mesh_terms: D000328:Adult; D003367:Cotinine / Q000652:urine*; D005069:Evaluation Studies as Topic; D006801:Humans; D008297:Male; D011760:Pyrrolidinones / Q000652:urine*; D011863:Radioimmunoassay; D012907:Smoking / Q000652:urine*; D013997:Time Factors
chemical_list: D011760:Pyrrolidinones; D003367:Cotinine