@book{57238,
	author = {Katz, David L.,},
	title = {Clinical evidence},
	publisher = {Sage Publications,},
	year = {c2001.},
	address = {Thousand Oaks, Calif. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0656/2001001275-d.html}
}