@book{33768,
	author = {Rayat, Charan Singh,},
	title = {Statistical methods in medical research /},
	publisher = {Springer,},
	year = {2018.},
	address = {Singapore :},
	url = {http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=1879411}
}