@book{18795,
	author = {Hosmer, David W., Jr. and Lemeshow, Stanley and Lemeshow, Stanley},
	title = {Applied survival analysis},
	publisher = {John Wiley,},
	year = {1999},
	series = {Wiley series in Probability and Statistics},
	address = {New York:},
	note = {"A Wiley Inter-Science Publication"}
}