Name	Info	Provider	Link
	subscription/membership/fee required	Chinese Medical Association Publishing House Ltd.	https://www.yiigle.com/LinkIn.do?linkin_type=pubmed&issn=1671-0274&year=2009&vol=12&issue=5&fpage=483
Intestinal Obstruction	free resource	MedlinePlus Health Information	https://medlineplus.gov/intestinalobstruction.html