Xu, Weihan
Li, Ruimin
Sun, Yongchang
Funding for this research was provided by:
National Natural Science Foundation of China (81470239, 81770040)
Article History
Received: 17 November 2018
Accepted: 18 July 2019
First Online: 26 July 2019
Ethics approval and consent to participate
: The protocol was approved by the research ethical committee of Beijing Tongren Hospital, under the following reference number: (TRECKT 2008–14). All subjects provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.