Document is current
Any future updates will be listed below
-
Authors
- License Information
-
More Information
Article History
Received: 18 June 2019
Accepted: 3 October 2019
First Online: 23 October 2019
Compliance with ethical standards
:
: The authors declare that they have no competing interests (both financial and non-financial).
: The study protocol has been approved by the Medical Ethics Committee of the Peking University First Hospital.
: Informed consent was obtained form all individual participants included in the study.
