Conflict of Interest
Hiroya Taniguchi reported research funding from Taiho and Daiichi-Sankyo, and honoraria from Taiho, Chugai, Daiichi-Sankyo, and Yakult Honsha. Kentaro Yamazaki reported research funding from Taiho and Daiichi-Sankyo, and honoraria from Taiho, Chugai, Daiichi-Sankyo, and Yakult Honsha. Toshiki Masuishi reported research funding from Daiichi-Sankyo and honoraria from Taiho, Chugai, Daiichi-Sankyo, and Yakult Honsha. Takeshi Kawakami reported honoraria from Taiho, Daiichi-Sankyo, and Yakult Honsha. Shigenori Kadowaki reported research funding and honoraria from Taiho, Chugai, and Daiichi-Sankyo. Kei Muro reported research funding from Taiho, Chugai, and Daiichi-Sankyo, and honoraria from Taiho, Chugai, and Daiichi-Sankyo, Yakult Honsha. The other authors indicated no financial relationships.