Funding for this research was provided by:
the National Natural Science Fundation of China (81302571)
the Natural Science Fundation of Science and Technology Commission of Shanghai Municipal of China (13ZR1452100)
the Shanghai Public Health Construction Projects Foundation (15GWZK0501)
the Foundation of Shanghai Municipal Commission of Health and Family Planning (201640096)
Received: 22 May 2017
Accepted: 20 December 2017
First Online: 25 January 2018
Ethical approval and consent to participate
: This study was conducted in strict accordance with the recommendations in the guidelines of the Institutional Animal Care and Use Committee of the Chinese Association for Laboratory Animal Sciences. The Ethics of Animal Experiments permit number was SBC-IRB-2013-07.
: The authors declare that they have no competing interests.
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