Funding for this research was provided by:
the Ministry of Education, Culture, Sports, Science and Technology of Japan (19K08497)
Received: 7 May 2020
Accepted: 13 November 2020
First Online: 25 November 2020
Ethics approval and consent to participate
: This prospective study was conducted in accordance with the Declaration of Helsinki and good clinical practice guidelines and was approved by the ethics committee of Moriguchi Keijinkai Hospital (approval no.: 3003). All participants were enrolled after providing written informed consent.
: All participants agreed for publication.
: The authors declare that they have no competing interests.