Lin, Jun-Ling
Feng, Xiao-Kai
Zhang, Dong-Mei
Sun, Hai-Yan
Article History
Received: 23 April 2020
Revised: 2 June 2020
Accepted: 5 June 2020
First Online: 27 June 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study protocol was approved by the Ethics Committee of Beijing Chaoyang Hospital, Capital Medical University.
: Written informed consent was obtained from all the study subjects before enrollment.