Abstract | Exposure to environmental tobacco smoke among South ...
Abstract | Exposure to environmental tobacco smoke among South ... : "Studies have identified that environmental tobacco smoke exposure is associated with sociodemographic factors such as age, sex, and socioeconomic status, but few studies have been conducted in South Korea . In this study, the authors ... 日本(Japan) | 中国 (China) 한국 (Korea) | ราชอาณาจักรไทย (Thailand) Malaysia | Tiếng Việt (Vietnam) AU - ASIA | English