Funding for this research was provided by:
Japan Society for the Promotion of Science (15K15764)
Received: 26 October 2018
Accepted: 25 March 2019
First Online: 19 April 2019
Ethics approval and consent to participate
: Not applicable.
: All patients gave their written informed consent for their record to be published in the present study.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.