@book{37150,
	author = {Heller, Richard F.},
	title = {Evidence for population health},
	publisher = {Oxford University Press,},
	year = {2005.},
	series = {Oxford medical publications},
	address = {Oxford :},
	url = {http://dx.doi.org/10.1093/acprof:oso/9780198529743.001.0001}
}