Piao, Helong
Guo, Yue
Ha, Jun Young
Sung, Mi Sun
Park, Sang Woo
Article History
Received: 4 December 2019
Accepted: 28 February 2020
First Online: 6 March 2020
Ethics approval and consent to participate
: The present study was approved by the Institutional Review Board of Chonnam National University Hospital. All patients provided written informed consent prior to enrollment in the study.
: Not applicable.
: The authors declare that they have no competing interests.