Funding for this research was provided by:
Japanese Society for the Promotion of Science (JSPS), Grant-in-Aid for Scientific Research (No. 17K01875)
Research Institute for Science and Engineering, Waseda University, Grant-in-Aid for Junior
Text and Data Mining valid from 2020-01-03
Received: 1 October 2019
Accepted: 26 December 2019
First Online: 3 January 2020
Ethics approval and consent to participate
: Ethical approval was granted by the Ethics Committee of Waseda University.
: Written informed consent for the publication of clinical details and/or clinical images was obtained from all patients.
: The authors declare that this research was conducted without any commercial or financial relationships which could be construed as a potential conflict of interest. The authors declare that they have no competing interests.