Document is current

Article History

Received: 11 September 2017

Accepted: 8 March 2018

First Online: 13 March 2018

Ethics approval and consent to participate

: Ethical approval was obtained from the institutional review board of Kyung Hee University Korean Medicine Hospital at Gangdong in Korea (KHNMCOH 2016–11–008-002). All investigators adhered to the Helsinki Declaration. Respondents signed written informed consent forms to participate, explaining research background, purpose, methods, and personal information protection.

: Not applicable. Our manuscript does not contain any data from individual person. Our manuscript is not a report of medical cases that include individual details, pictures or videos. In our survey research, individual information is not required, and statistical analysis is performed with raw survey data.

: The authors declare that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.