Funding for this research was provided by:
the Natural Science Funds of Zhejiang Province (LQ19H100002)
the Medical and Health Science and Technology Planning Project of Zhejiang Province (2017KY275)
the Public Technology Research/Social Development Program of Zhejiang Province (LGF19H190003)
the Hangzhou Science and Technology Development Program (20150733Q50)
Article History
Received: 28 May 2019
Accepted: 19 October 2019
First Online: 11 December 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest. All subjects who participated in this study provided written informed consent. This study was approved by the Ethics Committee of the First Affiliated Hospital of Zhejiang University.