Lim, Jeong Uk
Gil, Bo Mi
Kang, Hye Seon
Oh, Jongyeol
Kim, Yong Hyun
Kwon, Soon Seog
Article History
Received: 15 February 2019
Accepted: 30 May 2019
First Online: 4 July 2019
Ethics approval and consent to participate
: This retrospective study was approved by the Institutional Review Board of Bucheon St Mary’s Hospital. The need for informed consent was waived because the study was a retrospective review.
: Not applicable.
: The authors declare that they have no competing interests.