Received: 12 July 2018
Accepted: 31 July 2019
First Online: 28 August 2019
Ethics approval and consent to participate
: The institutional review board of Daegu Catholic University Medical Center approved the protocol of this trial (version 1.0, reference number: CR-18-018). Before enrollment, written informed consent will be obtained from patients participating in this trial.
: Not applicable.
: The authors declare that they have no competing interests.