Research progress of oral microenvironment in patients with type 2 diabetes mellitus and chronic periodon⁃ titis 
WANG Peipei, HUA Fei, HUANG Xia, GE Junyi, ZHAO Lu, GU Min.
The Journal of Practical Medicine . 2023, (10): 1320 -1324 .  DOI: 10.3969/j.issn.1006⁃5725.2023.10.023