Funding for this research was provided by:
National Natural Science Foundation of China (81771482)
National Institutes of Health (R01EB016089, P41EB015909, R01EB023693)
Received: 23 October 2018
Accepted: 23 May 2019
First Online: 30 May 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee of RuiJin Hospital, Shanghai JiaoTong University School of medicine, and the reference number for the ethical approval is “2014–17”. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.