Changes in biomarkers after 180 days of tobacco heating product use: A randomised trial

This randomized controlled study examined biomarkers of exposure and potential harm following a switch from smoking cigarettes to exclusive use of a tobacco heating product, as compared with continued cigarette smoking, in otherwise healthy volunteer smokers. As part of the study, lung function testing was assessed using a Vitalograph COMPACT Expert Workstation spirometer, while FeNO was measured using a NIOX VERO device.