title: Saliva cotinine levels in users of electronic cigarettes.
authors: J-F
authors: JF
authors: Etter
authors: C
authors: C
authors: Bullen
mesh_terms: D000328:Adult; D003367:Cotinine / Q000032:analysis*; D005260:Female; D006801:Humans; D008297:Male; D009538:Nicotine / Q000097:blood; D012463:Saliva / Q000737:chemistry*; D012907:Smoking / Q000097:blood; D061485:Tobacco Use Cessation Devices
chemical_list: D009538:Nicotine; D003367:Cotinine