Name	Info	Provider	Link
	free resource	Baishideng Publishing Group Inc.	https://www.wjgnet.com/1007-9327/full/v19/i31/5125.htm
Gastrointestinal Bleeding	free resource	MedlinePlus Health Information	https://medlineplus.gov/gastrointestinalbleeding.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23964147/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/23964147
	free resource	scite Smart Citations	https://scite.ai/reports/23964147