Funding for this research was provided by:
research grants on Rare and Intractable Diseases of the Ministry of Health, Labour and Welfare of Japan (H27-Nanchitou(Nan)-Ippan-036, H26-Nanchitou(Nan)-Ippan-089)
JSPS KAKENHI (15K20945)
Text and Data Mining valid from 2018-07-27
Received: 2 October 2017
Accepted: 16 July 2018
First Online: 27 July 2018
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the Faculty of Medicine of the University of Tokyo (ethical approval number: 11269). In Japan, personal information should be protected by the law of “Act on the Protection of Personal Information.” The information we collected in this study was not regarded as the personal information and the need for consent was deemed unnecessary by the Ethics Committee of the Faculty of Medicine of the University of Tokyo.
: Not applicable.
: The authors declare that they have no competing interests.
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