@book{3360,
	author = {Gray, J. A. Muir and Gray, J. A. Muir},
	title = {Evidence-based healthcare and public health :},
	publisher = {Churchill Livingstone,},
	year = {2008.},
	address = {Edinburgh ;},
	edition = {3rd ed.},
	note = {Rev. ed. of: Evidence-based healthcare / J.A. Muir Gray. 2nd. ed. 2001.},
	url = {http://www.loc.gov/catdir/toc/ecip089/2008002431.html}
}