Funding for this research was provided by:
National Natural Science Foundation of China (31630088)
Natural Science Foundation of Tianjin Municipal Science and Technology Commission (31770858)
Text and Data Mining valid from 2020-02-06
Received: 6 October 2018
Accepted: 25 January 2020
First Online: 6 February 2020
Ethics approval and consent to participate
: The use of human serum samples and clinical data was approved by the ethics committee of Fudan University. All subjects gave written informed consent in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.