Funding for this research was provided by:
National Key Research and Development Program of China (2018YFC2001905)
Article History
Received: 12 November 2019
Accepted: 23 January 2020
First Online: 28 January 2020
Ethics approval and consent to participate
: This study was approved by the Ethical Review Committee of Peking University People’s Hospital (Beijing, China) and informed consent was waived (No.2019PHB135–01).
: Not applicable.
: The authors declare that they have no competing interests.