Funding for this research was provided by:
National Natural Science Foundation of China (81900094, 81900093, 81400044, 81970088)
Beijing Municipal Administration of Hospitals’ Mission Plan (SML20150301)
Received: 14 February 2020
Accepted: 16 June 2020
First Online: 22 June 2020
Ethics approval and consent to participate
: The study was approved by the ethics committees of Beijing Chaoyang Hospital, Capital Medical University, and Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China (No. 2012-S068, 2014-ke-63). All patients gave written informed consent for participation in the study.
: Not applicable.
: The authors have declared that no conflict of interest exists.