Funding for this research was provided by:
Text and Data Mining valid from 2019-09-04
Received: 31 May 2019
Accepted: 20 August 2019
First Online: 4 September 2019
Ethics approval and consent to participate
: 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. The study protocol was approved by the ethics committee of the Graduate School of Medicine, The University of Tokyo (ID: 2728). Informed consent was provided by all individual participants included in the study.
: Not applicable.
: Author Yoshiuchi K. received research grants from Sharp Cooperation for the submitted work.