Li, Jun
Yu, Qingtong
Huang, Haisen
Deng, Wenwen
Cao, Xia
Adu-Frimpong, Michael
Yu, Jiangnan
Xu, Ximing
Article History
Received: 20 November 2017
Revised: 7 February 2018
Accepted: 26 February 2018
First Online: 3 April 2018
Ethics approval and consent to participate
: Human placental tissue was kindly provided by the Affiliated Hospital of Jiangsu University in accordance with the Declaration of Helsinki. All animal procedures were approved by the ethics committee of Jiangsu University in accordance with the Principe of Laboratory Animal Care (NIH Publication No. 85-23, revised 1985).
: All authors agree to the publication of this article.
: The authors declare that they have no competing interests.
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