Name	Info	Provider	Link
	free resource	Medicina Oral S.L.	http://www.medicinaoral.com/pubmed/medoralv18_i1_pe19.pdf
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23085711/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/23085711
	free resource	scite Smart Citations	https://scite.ai/reports/23085711