Song, Ga-Young
Jung, Sung-Hoon
Kim, Kihyun
Kim, Seok Jin
Yoon, Sang Eun
Lee, Ho Sup
Kim, Mihee
Ahn, Seo-Yeon
Ahn, Jae-Sook
Yang, Deok-Hwan
Kim, Hyeoung-Joon
Lee, Je-Jung
Article History
Received: 20 April 2020
Accepted: 18 August 2020
First Online: 24 August 2020
Ethics approval and consent to participate
: This retrospective study was approved by the institutional ethics committee at Chonnam National University Hwasun Hospital and was conducted in accordance to the Declaration of Helsinki principles. The institutional ethics committee at Chonnam National University Hwasun Hospital waived the requirement to obtain informed consent because of retrospective nature of this study.
: Not applicable.
: The authors declare that they have no conflict of interest.