Huang, Huijin
Niu, Zikang
Liu, Gang
Jiang, Mengdi
Jia, Qingxia
Li, Xiaoli
Su, Yingying
Funding for this research was provided by:
National Natural Science Foundation of China (81671037)
Article History
Received: 17 January 2020
Accepted: 5 July 2020
First Online: 23 July 2020
Conflict of interest
: The authors declare that they have no competing interests.
: The study observed the principles of the Helsinki Declaration and was approved by the Ethics Committee of Xuanwu Hospital, Capital Medical University, Beijing. Informed consent was obtained from the family members or designated surrogates of all participants.