Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S1047-9651(09)00055-2
Mobility Aids	free resource	MedlinePlus Health Information	https://medlineplus.gov/mobilityaids.html
	subscription/membership/fee required	W.B. Saunders	http://journals.elsevierhealth.com/retrieve/pii/S1047-9651(09)00055-2
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S1047-9651(09)00055-2