Text and Data Mining valid from 2020-03-11
Received: 6 December 2019
Accepted: 17 February 2020
First Online: 11 March 2020
Ethics approval and consent to participate
: All the study participants provided their informed consent. The study design was approved by the Ethics Committee of the Saitama Medical University International Medical Center (Number: 18-274).
: All patients have agreed to use their personal medical data for research and publication. Please refer to the attached file for details.
: The authors declare that they have no competing interests.