Kim, Bu Ki
Chung, Young Taek http://orcid.org/0000-0002-8203-8445
Article History
Received: 15 July 2020
Accepted: 4 December 2020
First Online: 9 January 2021
Ethics approval and consent to participate
: The study was protocol was reviewed and approved by the Public Internal Regulatory Board of the Ministry of Health and Welfare, Korea. It also strictly adhered to the principles of the Declaration of Helsinki, and written informed consent for study participation was obtained from all patients.
: Not applicable.
: All authors declare that they have no competing interests.