Ma, Yanzhuo
Gong, Zhi
Nan, Kai
Qi, Shuying
Chen, Yu
Ding, Chao
Wang, Dongmei
Ru, Leisheng
Article History
Received: 13 September 2018
Accepted: 14 May 2019
First Online: 22 May 2019
Ethics approval and consent to participate
: Our study was approved by the Animal Care and Use Committee at Bethune International Peace Hospital (Shijiazhuang, Hebei, China). The experiment was carried out in accordance with the Code of Ethics of the World Medical Association (Declaration of Helsinki).
: No such data included.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.