Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/26998889/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/26998889
	free resource	scite Smart Citations	https://scite.ai/reports/26998889
	free resource	Silverchair Information Systems	https://meridian.allenpress.com/angle-orthodontist/article-lookup/doi/10.2319/102715-723.1