Received: 6 June 2020
Accepted: 29 October 2020
First Online: 3 December 2020
Ethics approval and consent to participate
: JRDR was approved by the ethical committee of JSDT (approval number 1-3) and has been registered in “University hospital Medical Information Network (UMIN) Clinical Trials Registry” as a clinical trial ID of UMIN000018641 on 8 August 2015. The study was performed in accordance with the relevant guidelines of the Declaration of Helsinki.
: Not applicable
: The authors declare that they have no competing interests.