Recent and Past Bystander Exposure to Exhaled Heated Tobacco Product Aerosols - Suzuka Tateno

We conducted an internet-based survey to investigate actual information on bystander exposure to exhaled heated tobacco aerosols (EHA) and cigarette smoke (CS) (i.e., the most recent exposure timing, total exposure duration, overlap in bystander exposure to both EHA and CS), and then considered the discrepancy between exposure information arising from cross-sectional studies and the supplementary data generated by this study.