@book{37324,
	author = {Bhopal, Raj S.},
	title = {Concepts of epidemiology},
	publisher = {Oxford University Press,},
	year = {c2008.},
	address = {Oxford :},
	edition = {2nd ed.},
	note = {Previous ed.: 2002.},
	url = {http://dx.doi.org/10.1093/acprof:oso/9780199543144.001.0001}
}