@book{257690,
	author = {United States.},
	title = {Medicare payments for currently covered prescription drugs :},
	publisher = {U.S. Government Printing Office :},
	year = {2003.},
	address = {Washington :},
	note = {"Serial no. 107-84."},
	url = {http://purl.access.gpo.gov/GPO/LPS28944}
}