@book{14738,
	author = {Cohen, Clara. and Institute of Medicine (U.S.).},
	title = {Design considerations for evaluating the impact of PEPFAR},
	publisher = {National Academies Press,},
	year = {c2008.},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10255027}
}