@book{3224,
	author = {Laufer, Igor and Lavine, Marc S},
	title = {Double contrast gastrointestinal radiology },
	publisher = {Saunders},
	year = {1992},
	address = {Philadelphia },
	edition = {2nd ed.},
	note = {Rev. ed. of: Double contrast gastrointestinal radiology with endoscopic correlation / Igor Laufer. 1979.}
}