Name	Info	Provider	Link
	free resource	Aran ediciones, S.L.	http://www.grupoaran.com/mrmUpdate/lecturaPDFfromXML.asp?IdArt=4620841&TO=RVN&Eng=1
Stomach Cancer	free resource	MedlinePlus Health Information	https://medlineplus.gov/stomachcancer.html
Full text from	free resource	Diposit Digital de la Universitat de Barcelona	http://hdl.handle.net/2445/119035