Yoo, Jeong Woo
Koo, Kyo Chul
Chung, Byung Ha
Lee, Kwang Suk
Funding for this research was provided by:
the Patient-Centered Clinical Research Coordinating Center, funded by the Ministry of Health & Welfare, Republic of Korea (HI19C0481, HC19C0164)
Article History
Received: 21 May 2021
Accepted: 9 September 2021
First Online: 16 September 2021
Declarations
:
: This study was approved by the institutional ethics committee (Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea, 3-2019-0418), and all procedures were conducted in accordance with the ethical standards of the 1964 Helsinki declaration and its later amendments. The requirement for informed consent was waived for this study as it was based on retrospective, anonymous patient data and did not involve patient intervention or the use of human tissue samples.
: Not applicable.
: The authors declare that they have no competing interests.