Jiang, Chuan
Dong, Ning
Feng, Jianli
Hao, Maolin
Article History
First Online: 16 November 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval was obtained from the Ethics Committee of Shandong Provincial ENT Hospital. All procedures performed in studies involving animals were conducted in accordance with the animal care and guidelines of Shandong Provincial ENT Hospital.
: Not applicable.