@book{188221,
	author = {VARIOS AUTORES},
	title = {Gastroenterology. En: Hazzard's geriatric medicine and gerontology, 6th ed.},
	publisher = {McGraw-Hill},
	year = {2009},
	address = {Nueva York},
	url = {\\Srvdatos\siis\docus\Documentos Internet\2012-Posteriores\2012\Gastroenterology.pdf}
}