@book{5114,
	author = {Rao, C. Radhakrishna},
	title = {Epidemiology and medical statistics /},
	publisher = {Elsevier,},
	year = {2008.},
	series = {Handbook of statistics,},
	address = {Amsterdam ;},
	edition = {1st ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1010/2010294447-d.html}
}