@book{219475,
	author = {National Lybrary of Medicine (U.S.)},
	title = {Medical subject headings},
	publisher = {United States},
	address = {Bethesd,MD},
	note = {Description based on contents viewed on June 29,2007;title from web site caption},
	url = {http://purl.access.gpo.gov/GPO/LPS5102}
}