@book{189659,
	author = {Haynes, R. Brian.},
	title = {Clinical epidemiology :},
	publisher = {Lippincott Williams & Wilkins,},
	year = {[2006]},
	address = {Philadelphia :},
	edition = {Third edition.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10825291}
}