Shagera, Qaid Ahmed
Cheon, Gi Jeong http://orcid.org/0000-0002-1360-5186
Koh, Youngil
Yoo, Min Young
Kang, Keon Wook
Lee, Dong Soo
Kim, E. Edmund
Yoon, Sung-Soo
Chung, June-Key
Article History
Received: 27 December 2018
Accepted: 7 March 2019
First Online: 2 April 2019
Compliance with ethical standards
:
: None.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the principles of the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: This retrospective study was approved by the institutional review board. The requirement for written informed consent was waived due to the retrospective design of the study.