@book{297267,
	author = {Schwartz, Seymour I. and Shires, G. Tom},
	title = {Principios de cirugía 1 / Seymour I. Schuartz ... [et. al]},
	publisher = {Mcgraw-Hill},
	year = {2000},
	address = {México},
	edition = {7a ed}
}