Funding for this research was provided by:
the National Research Foundation of Korea (2015R1A5A2009124)
Korea Health Industry Development Institute (HI18C0453)
Creative Economy Leading Technology Development Program of the Gyeongsangbuk–do and Gyeongbuk Science & Technology Promotion Center (SF316001A)
Article History
Received: 15 January 2019
Accepted: 16 March 2019
First Online: 21 March 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human and animal subjects performed by any of the authors.