Document is current
Any future updates will be listed below
-
Authors
YU, Li
- License Information
-
More Information
Article History
Received: 8 December 2019
Accepted: 10 December 2019
First Online: 8 January 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest to disclose.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study, informed consent is not required.
Free to read: This content has been made available to all.
