Name	Info	Provider	Link
Gastrointestinal Bleeding	free resource	MedlinePlus Health Information	https://medlineplus.gov/gastrointestinalbleeding.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=33074845.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/33074845/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/33074845
	subscription/membership/fee required	Wolters Kluwer	https://doi.org/10.1097/CM9.0000000000001156