Funding for this research was provided by:
National Natural Science Foundation of China (81570360)
Jilin Provincial Development and Reform Commission Foundation (2016C026)
Text and Data Mining valid from 2019-12-01
Received: 30 April 2019
Revised: 5 October 2019
Accepted: 15 October 2019
First Online: 16 December 2019
Ethics approval and consent to participate
: All experiments were performed in accordance with the guidelines and study protocols of the Animal Experiment Ethics Committee of Jilin University (approval no.201800132). All surgeries were performed under anesthesia, and efforts were made to minimize the suffering of the animals. The informed written consent form was approved by the Clinical Research Ethics Committee and signed by the donor before sample collection.
: Not applicable.
: The authors declare that they have no competing interests.