Da Hye Oh, Doo-Heum Park, Seung-Ho Ryu, Jee Hyun Ha, Hong Jun Jeon, Department of Psychiatry, Konkuk University Medical Center, Seoul 05030, South Korea
Doo-Heum Park, Seung-Ho Ryu, Jee Hyun Ha, Hong Jun Jeon, Department of Psychiatry, Konkuk University School of Medicine, Seoul 05029, South Korea
Author contributions: Jeon HJ conceptualized this study; Jeon HJ, Park DH, Ryu SH and Ha JH collected and interpreted the data; Oh DH conducted statistical analysis and wrote the original draft; Jeon HJ revised the manuscript; all authors reviewed and approved the final article.
Institutional review board statement: This study was approved by the Institutional Review Board of Konkuk University Hospital (IRB number: KUMC 2021-01-028).
Informed consent statement: Written informed consent was waived due to the retrospective nature of the study.
Conflict-of-interest statement: The authors have no conflict of interest.
Data sharing statement: No additional data are available.
: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Hong Jun Jeon, MD, Assistant Professor, Department of Psychiatry, Konkuk University Medical Center, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 05030, South Korea. email@example.com
Received: February 24, 2021
Peer-review started: February 24, 2021
First decision: April 21, 2021
Revised: May 6, 2021
Accepted: May 24, 2021
Article in press: May 24, 2021
Published online: June 19, 2021