Kumagai, Etsuko
Hosohata, Keiko
Furumachi, Kazuhiro
Takai, Shinji
Article History
Received: 2 December 2019
Accepted: 6 July 2020
First Online: 22 July 2020
Ethics approval and consent to participate
: The present study was conducted in accordance with the principles of the Declaration of Helsinki and approved by the research Ethics Committee of Kenwakai Hospital (No.2019008).
: Not applicable.
: The authors declare that they have no competing interests.