Research Article
Expired air carbon monoxide: a simple breath test of tobacco smoke intake.
Br Med J 1980; 281 doi: https://doi.org/10.1136/bmj.281.6238.484 (Published 16 August 1980) Cite this as: Br Med J 1980;281:484This is a PDF-only article. The first page of the PDF of this article appears above.