**Competing interests**

YN received scholarship funds from EA Pharma. Co. Ltd., a collaboration research fund from Taiyo Kagaku Co., Ltd., and received lecture fees from Mylan EPD Co., Takeda Pharma. Co. Ltd., Mochida Pharma. Co. Ltd., EA Pharma. Co. Ltd., Otsuka Pharma. Co. Ltd., and Miyarisan Pharma. Co. Ltd. TT received a collaboration research fund from Fujifilm Medical Co., Ltd., and received lecture fees by Mochida Pharma. Co. Ltd., and Yanssen Pharmaceutical K.K. This study was partly supported by these funds. Neither the funding agency nor any outside organization participated in the study design or had any competing interests. These companies approved the final version of the manuscript.
