Funding for this research was provided by:
National Natural Science Foundation of China (21506161, 21646010, 21476172)
Open Funds from the key laboratory of biomedical materials in Tianjin (1634-1)
Article History
Received: 9 July 2018
Accepted: 14 September 2018
First Online: 20 September 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.