Text and Data Mining valid from 2019-03-01
Received: 7 December 2017
Accepted: 31 January 2019
First Online: 1 March 2019
: Ethics approval for animal experiments was taken from the Institutional Animal Research Board of Chungbuk National University (CBNUA-1051-17-02), and this study does not contain any human data (Not applicable for human). Ether euthanasia is permitted by the Institutional animal care and use committee (IACUC) standard operating guideline which is approved by Korean Animal and Plant Quarantine Agency and Korean Food and Drug Administration. PDF file of Korean euthanasia guideline is on the following website, ExternalRef removed
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.