title: [Objective verification of the anonymous questionnaire method used to identify schoolchildren who smoke].
mesh_terms: D000293:Adolescent; D002248:Carbon Monoxide / Q000032:analysis*; D006801:Humans; D012907:Smoking; D011795:Surveys and Questionnaires
chemical_list: D002248:Carbon Monoxide
vernacular_title: Ob'ektivnaia proverka metoda anonimnogo anketirovaniia, ispol'zovannogo v tseliakh vyiavleniia kuriashchikh shkol'nikov.