Name Info Provider Link
free resource BioMed Central https://bmcoralhealth.biomedcentral.com/articles/10.1186/s12903-021-02019-8
Gum Disease free resource MedlinePlus Health Information https://medlineplus.gov/gumdisease.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34922521/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/34922521