Understanding low COPD exacerbation rates in Japan: a review and comparison with other countries
Takeo Ishii,1,2,* Masaharu Nishimura,3,* Asako Akimoto,1 Mark H James,4 Paul Jones4,5,* 1Respiratory Medical Affairs, Development and Medical Affairs, GSK K.K., Tokyo, Japan; 2Graduate School of Medicine, Nippon Medical School, Tokyo, Japan; 3Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido 5 HTP Uni