Name	Info	Provider	Link
	free resource	Ediciones Doyma, S.L.	https://www.elsevier.es/en/linksolver/pdf/pii/S0001-7310(22)00686-X
Skin Cancer	free resource	MedlinePlus Health Information	https://medlineplus.gov/skincancer.html
Full text from	free resource	Diposit Digital de la Universitat de Barcelona	http://hdl.handle.net/2445/201428