@book{9711,
	author = {Botero Betancur, Mario. and Olarte Serna, Federico.},
	title = {Cirugía : gastroenterología /},
	publisher = {Universidad de Antioquia,},
	year = {2002.},
	address = {Medellin :},
	note = {Incluye indice Analitico.}
}