Liu, Gang
Li, Qingyue
Wang, Chong
Xu, Caoling
Article History
Received: 21 August 2018
Accepted: 5 February 2019
First Online: 18 February 2019
Compliance with ethical standards
: No animal was harmed during the course of this research. All experimental procedures complied with current laws regarding animal welfare and research in China and were specifically approved by the Animal Research Ethics Committee of Anhui Medical University.
: The authors declare that they have no competing interests.