Funding for this research was provided by:
Shenkang 3-year project-Specialized clinical disease five new transformation project (16CR3021A)
Received: 9 January 2019
Accepted: 9 July 2019
First Online: 7 August 2019
Ethics approval and consent to participate
: This study has been approved by the ethics committee of each participating hospital. The international review board of Shuguang Hospital affiliated to Shanghai University of TCM approved the original protocol of this study on 26 August 2016 (2016-kykt-08) and the latest amendment was approved on 26 October 2016. It was approved by the research ethics committee of Shanghai Changzheng Hospital affiliated to the Second Military Medical University on 22 November 2017 (2017SL051). It was approved by the ethics committee of Shanghai Municipal Hospital affiliated to Shanghai University of TCM on 22 November 2016 (2016SHL-KYYS-35). All changes are included in this protocol.
: Not applicable.
: The authors declare that they have no competing interests.