Article History
Received: 31 December 2019
Accepted: 4 February 2020
First Online: 12 February 2020
Compliance with ethical standards
:
: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
: This study was approved by Institutional Review Board (IRB) of the Department of Otolaryngology Head and Neck Surgery of Catholic University (approval number: UC18RESI0130).