@book{218499,
	author = {U.S. Preventive Services Task Force. and United States},
	title = {Guide to clinical preventive services},
	publisher = {Agency for Healthcare Research and Quality},
	address = {Rockville, MD},
	note = {Print editions cataloged as monographs, as of Apr. 28, 2006.},
	url = {http://purl.gpo.gov/GPO/LPS68815}
}