Lee, Sungjoon
Kim, Doo Young
Kim, Su Bin
Kim, Woojin
Kang, Mi-Ri
Kim, Hye-Jin
Lee, Ki Hwa
Yoo, Minwook
Choi, Byung-Sam
Kim, Jung Soo
Lee, Sun-Il
Kim, Hae Yu
Jin, Sung-Chul http://orcid.org/0000-0001-5282-9329
Article History
Received: 31 August 2018
Accepted: 8 October 2018
First Online: 17 October 2018
Compliance with ethical standards
:
: No funding was received for this study.
: The authors declare that they have no conflict of interest.
: 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 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.
: For this type of retrospective study formal consent is not required.