Article History
Received: 17 December 2018
Accepted: 18 October 2019
First Online: 23 November 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants performed by any of the authors. All procedures performed in studies involving animals were in accordance with the ethical standards of Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital.
: Informed consent was obtained from all individual participants included in the study.