Name	Info	Provider	Link
	free resource	Ediciones Doyma, S.L.	http://www.elsevier.es/en/linksolver/ft/ivp/0009-739X/78/357
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/13082149
Stomach Cancer	free resource	MedlinePlus Health Information	https://medlineplus.gov/stomachcancer.html