Choi, Kwang Ho
Sung, Si Chan
Kim, Hyungtae
Lee, Hyoung Doo
Ko, Hoon
Byun, Joung-Hee
Article History
Received: 27 June 2019
Accepted: 11 September 2019
First Online: 18 September 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Pusan National University Yangsan Hospital.
: Not applicable.
: The authors declare that they have no competing interests.