RT Journal Article SR Electronic T1 Carbon monoxide in the expired air of smokers who smoke so-called “light” brands of cigarettes JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 352 OP 352 DO 10.1136/tc.9.3.352 VO 9 IS 3 A1 GROMAN, ERNEST A1 BLAUENSTEINER, DORIS A1 KUNZE, URSULA A1 SCHOBERBERGER, RUDOLF YR 2000 UL http://tobaccocontrol.bmj.com/content/9/3/352.1.abstract AB