Funding for this research was provided by:
National Natural Science Foundation of China (81774332, 81873324, 81873325)
Received: 23 October 2019
Revised: 6 January 2020
Accepted: 10 February 2020
First Online: 26 February 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of the First Affiliated Hospital of Zhejiang Chinese Medicine University, number 2019-KL-075-01. All enrolled patients’ written informed consents were obtained.
: Not applicable.
: The authors declare that they have no competing interests.