Jeong, Soo Young
Choi, Chel Hun
Kim, Tae Joong
Lee, Jeong Won
Kim, Byoung-Gie
Bae, Duk Soo
Lee, Yoo-Young http://orcid.org/0000-0001-5902-9877
Article History
Received: 16 October 2019
Accepted: 17 December 2019
First Online: 31 December 2019
Ethics approval and consent to participate
: This study was approved by the institutional review board (2019–03-009) and the need for direct informed consent was waived according to ethical guidelines.
: The authors declare that they have no competing interests.