@book{2738,
	author = {Armstrong, William F and Ryan, Thomas},
	title = {Feigenbaum's echocardiography },
	publisher = {Wolters Kluwer Health/Lippincott Williams & Wilkins},
	year = {2010},
	address = {Philadelphia },
	edition = {7th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1012/2009034420-d.html}
}