Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0033-8389(21)00103-2
Diagnostic Imaging	free resource	MedlinePlus Health Information	https://medlineplus.gov/diagnosticimaging.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34689881/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34689881
	subscription/membership/fee required	W.B. Saunders	http://journals.elsevierhealth.com/retrieve/pii/S0033-8389(21)00103-2
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0033-8389(21)00103-2