@book{3123,
	author = {Bland, Martin. and Peacock, Janet.},
	title = {Statistical questions in evidence-based medicine /},
	publisher = {Oxford University Press,},
	year = {2000.},
	address = {Oxford ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0610/00056538-d.html}
}