Funding for this research was provided by:
Ministry of Health and Welfare, Republic of Korea (HI11C2138 & HI15C0051)
Article History
Received: 15 May 2019
Accepted: 22 June 2020
First Online: 17 July 2020
Ethics approval and consent to participate
: This study was approved by the animal experiment committee of Biotoxtech Co., Ltd., Korea (Approval No. 130495 and 140014) on the basis of the Animal Protection Act of Korea.
: Not applicable.
: The authors declare that they have no competing interests.