Received: 16 July 2020
Accepted: 12 May 2021
First Online: 31 May 2021
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional review board of the Ewha Clinical Trial Center at Ewha Womans University and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.