Yanagisawa Satoru, Morikawa Naoto, Kimura Yuichiro, Nagano Yoko, Murakami Kazuhiro, Tabata Toshiharu
Department of Respiratory Medicine, Tohoku Kosei Nenkin Hospital, Sendai, Japan.
Respirology. 2012 Nov;17(8):1275-7. doi: 10.1111/j.1440-1843.2012.02258.x.