Zhao, Han http://orcid.org/0000-0003-0526-610X
Hu, Jingchao
Zhao, Li http://orcid.org/0000-0001-9308-6808
Funding for this research was provided by:
China Scholarship Council (201809110017)
Beijing Stomatological Hospital, School of Stomatology, Capital Medical University
Article History
Received: 19 January 2020
Accepted: 11 June 2020
First Online: 1 July 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: As all analyses were grounded on previously published studies, ethical approval was not necessary.