@book{3296,
	author = {Tham, Tony CK and Collins, John SA},
	title = {Gastrointestinal emergencies},
	publisher = {BMJ Books},
	year = {2000},
	address = {London },
	edition = {1st ed.},
	url = {http://www.columbia.edu/cgi-bin/cul/resolve?clio4250351}
}