Funding for this research was provided by:
Ministry of Education, Culture, Sports, Science and Technology (20119002)
Japan Society for the Promotion of Science (25285204)
Text and Data Mining valid from 2019-11-28
Received: 28 May 2019
Accepted: 14 November 2019
First Online: 28 November 2019
Ethics approval and consent to participate
: This study was approved by the Ethical Committee of the Dokkyo Medical University Saitama medical center (hosp-k 24016) and by the Ethical Committee of Chuo University. Current study contains volunteer’s image in Fig. InternalRef removed, and we have received consent for publication.
: Our submission is not currently under review elsewhere and all authors have read and approved the manuscript.
: The authors declare that they have no competing interests in this section.