Shi, Yang
Zhu, Chao-ning
Xie, Zhijian
Article History
Received: 28 May 2019
Accepted: 17 January 2020
First Online: 9 October 2020
Compliance with ethical guidelines
:
: Y. Shi, C.-n. Zhu and Z. Xie declare that they have no competing interests.
: This study was approved by the Ethics Committee of The Affiliated Stomatology Hospital of Zhejiang University School of Medicine, China, before it was conducted (Number 201921).