Comparison of biochemical and questionnaire estimates of tobacco exposure.
D000328:Adult; D000367:Age Factors; D002248:Carbon Monoxide / Q000032:analysis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010947:Plants, Toxic; D012907:Smoking; D000074606:Smoking Prevention; D011795:Surveys and Questionnaires; D013861:Thiocyanates / Q000097:blood*; D013997:Time Factors; D014026:Nicotiana
D013861:Thiocyanates; D002248:Carbon Monoxide