Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0109-5641(17)30762-5
Orthodontia	free resource	MedlinePlus Health Information	https://medlineplus.gov/orthodontia.html
Full text from	free resource	Zurich Open Access Repository and Archive	https://doi.org/10.5167/uzh-169359
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0109-5641(17)30762-5
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