@book{7964,
	author = {Rolston, David D. K. and Nielsen, Craig.},
	title = {Rapid review for USMLE step 3 },
	publisher = {Mosby/Elsevier},
	year = {2008},
	address = {Philadelphia },
	edition = {1st ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/ecip0719/2007022587.html}
}