Document is current
Any future updates will be listed below
-
Authors
Li, Juan
Li, Li
Wang, Xiaoping
Xiao, Lei
- License Information
-
More Information
Article History
Received: 1 January 2019
Accepted: 11 March 2020
First Online: 17 April 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of Yantai Yuhuangding Hospital and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.
