Funding for this research was provided by:
Chinese Academy of Medical Sciences Initiative for Innovative Medicine (CAMS-2017-I2M-1-002)
Received: 18 July 2019
Accepted: 27 August 2019
First Online: 31 August 2019
Ethics approval and consent to participate
: The Institutional Review Board of PUMCH has approved this study (HS-1245), and all participants had given their consents before enrollment.
: Consents for publication have been obtained from all patients.
: All authors declare that they have no conflicts of interest to disclose.