@book{129808,
	author = {Saracci, Rodolfo, and ebrary, Inc.},
	title = {Epidemiology},
	publisher = {Oxford University Press,},
	year = {2010.},
	series = {Very short introductions},
	address = {Oxford ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10464103}
}