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Watai, Kentaro, Kiyoshi Sekiya, Hiroaki Hayashi, Yuma Fukutomi, a Masami Taniguchi. "Effects of Short-term Smoking On Lung Function and Airway Hyper-responsiveness in Young Patients With Untreated Intermittent Adult-onset Asthma: Retrospective Cross-sectional Study At a Primary–tertiary Care Hospital in Japan." BMJ Open 2019.

Watai, Kentaro, et al. "Effects of Short-term Smoking On Lung Function and Airway Hyper-responsiveness in Young Patients With Untreated Intermittent Adult-onset Asthma: Retrospective Cross-sectional Study At a Primary–tertiary Care Hospital in Japan." BMJ Open 2019.