Text and Data Mining valid from 2019-04-16
Received: 20 March 2019
Accepted: 12 April 2019
First Online: 16 April 2019
Compliance with ethical standards
: YH and YO have received honoraria from TAIHO PHARMACEUTICAL. The other authors declare no conflicts of interest associated with this manuscript.
: UMIN-CTR identifier: UMIN000010737.
: Informed consent was obtained from all individual participants included in the study.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.