Funding for this research was provided by:
National Natural Science Foundation of China (31670118)
the Key Subject of Clinical Medical Engineering of Zhejiang Province (No. G3221)
Natural Science Foundation of Zhejiang Province (LR15H030002)
the Major Scientific Project of Zhejiang Province (2017C03028)
S&T Major Project of China (2017ZX10203205)
Received: 26 February 2019
Accepted: 21 June 2019
First Online: 23 July 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the First Affiliated Hospital of Zhejiang University. All subjects provided informed consent to be included in the study.
: Not applicable.
: The authors declare that they have no competing interests.