Gao, Jing
Liu, Cuicui
Zhang, Heping
Sun, Zhen
Wang, Rongmei
Article History
Received: 14 October 2019
Accepted: 2 December 2019
First Online: 21 December 2019
Ethics approval
: All the animal experiments were approved by ethics committee of Department of Anesthesia, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Shinan District, Qingdao, 266000, China.
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.