Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/MDOI-JR-12-2006-87-12-C1-0221-0363-101019-200607640
Intestinal Obstruction	free resource	MedlinePlus Health Information	https://medlineplus.gov/intestinalobstruction.html