Funding for this research was provided by:
Yeungnam University (2019A580017)
Received: 27 August 2019
Accepted: 21 November 2019
First Online: 6 January 2020
Ethics approval and consent to participate
: This study will be conducted in accordance with ethical standards of the Declaration of Helsinki. This trial was approved by the institutional review board at Yeungnam University Medical Center on 12 June 2019 (IRB No. 2019–04–031-002) and registered with the clinical research information service (CRIS KCT0004063). The researcher will obtain written informed consent from the participants.
: Not applicable.
: The authors declare that they have no competing interests.