Li, Wei
Taskin, Tanjila
Gautam, Prem
Gamber, Michelle
Sun, Wenjie
Article History
Received: 2 April 2020
Revised: 18 May 2020
Accepted: 27 May 2020
First Online: 19 June 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval for collecting data on human subjects was received at Peking University by their institutional review board (IRB). All participants gave their explicit written informed consent before recruitment into the study.