Competing interests
TAKAYASU
The authors declare the following financial interests/personal relationships, which may be considered potential competing interests. Satoru Miura reports personal fees from Nippon Boehringer-Ingelheim and AstraZeneca. Yasuhiro Koh reports grants from Boehringer-Ingelheim and AstraZeneca. Koichi Azuma reports personal fees and grants from AstraZeneca. Hiroshige Yoshioka reports personal fees and grants from Nippon Boehringer-Ingelheim. Takayasu Kurata reports personal fees from Nippon Boehringer-Ingelheim and AstraZeneca. Nobuyuki Yamamoto reports personal fees from AstraZeneca and grants from Nippon Boehringer-Ingelheim. Hiroshi Tanaka reports personal fees and grants from AstraZeneca. The remaining authors declare no relevant conflicts of interest related to this study.