Tobacco use among designated air pollution victims and its association with lung function and respiratory symptoms: a retrospective cross-sectional study
Kenji Kotaki, Hideaki Senjyu, Takako Tanaka, Yudai Yano, Naomi Miyamoto, Tsuyoshi Nishinakagawa, Yorihide Yanagita, Masaharu Asai, Ryo Kozu, Mitsuru Tabusadani, Terumitsu Sawai, Sumihisa Honda
BMJ Open Jul 2014, 4 (7) e005393; DOI: 10.1136/bmjopen-2014-005393