Document is current

Article History

Received: 16 September 2019

Accepted: 22 April 2020

First Online: 6 May 2020

Ethics approval and consent to participate

: All participants provided informed consent before data collection, and the survey was conducted according to the Article 16 of National Health Promotion Act in Korea. The protocol of this study was in accordance with the Declaration of Helsinki and approved by the institutional review board of the Chung-Ang University Hospital (1908-004-16275).

: Not applicable.

: The authors declare that there is no conflict of interest.