Conflict of interest
None.
Additional information
Funding
YK has received grants or speaking fees from AbbVie, Astellas, Ayumi, Bristol-Myers Squibb, Chugai, Eisai, Eli Lilly, Hisamitsu, Jansen, Kissei, Pfizer, Sanofi, Takeda, Tanabe-Mitsubishi, and UCB. TT has received research grants or speaking fees from Astellas Pharma Inc, Bristol–Myers K.K., Chugai Pharmaceutical Co, Ltd., Daiichi Sankyo Co., Ltd., Takeda Pharmaceutical Co., Ltd., Teijin Pharma Ltd., AbbVie GK, Asahikasei Pharma Corp., Mitsubishi Tanabe Pharma, Astra Zeneca K.K., Eli Lilly Japan K.K., Novartis Pharma K.K., Abbivie GK, Nipponkayaku Co. Ltd, Janssen, Pharmaceutical K.K., Taiho Pharmaceutical Co., Ltd., and Pfizer Japan Inc.