Article History
Received: 18 October 2020
Accepted: 6 December 2020
First Online: 5 January 2021
Compliance with ethical standards
:
: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
: The human study was approved by the Ethics Committee of Shandong Provincial Third Hospital (SLSY-H-201714). All the samples were collected with written informed consent in accordance with the Declaration of Helsinki. All experimental animal procedures in this study conformed to the National Institutes of Health Guide for the Care and Use of Laboratory Animals, and were approved by the Institutional Animal Care and Use Committee of Shandong Provincial Third Hospital (SLSY-A-201803).