Received: 24 May 2021
Accepted: 24 August 2021
First Online: 1 September 2021
: This study was conducted with approval from the appropriate Ethics Review Committee of the Kawasaki University of Medical Welfare (approval number, 16-48). The content and purposes of the study were explained in advance to the patients, and consent to participate in this study was obtained from all prospective patients. This investigation was conducted according to the principles outlined in the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.