Funding for this research was provided by:
the National Natural Science Foundation of China (81541101)
the Capital Health Research and Development of Special (2018-1-2032)
the Project of Beijing Chaoyang Hospital 1351 Talents Training (CYXZ-2017-09)
the Beijing Municipal Administration of Hospitals Incubating Program (PX2019012)
Received: 23 July 2019
Accepted: 20 January 2020
First Online: 28 January 2020
Ethics approval and consent to participate
: The Institutional Review Board of the Beijing Chaoyang Hospital, Capital Medical University approved this study (2014-ke-161-1). Each patient or an appropriate family member provided informed written consent to obtain clinical materials.
: Not applicable.
: The authors declare that they have no competing interests.