@book{30609,
	author = {Daniels, Michael J. and Hogan, Joseph W.},
	title = {Missing data in longitudinal studies:},
	publisher = {Chapman & Hall/CRC Press,},
	year = {2008},
	series = {Monographs on Statistics and applied probability},
	address = {Boca Raton:},
	note = {"Purchased under NBHM grant for the year 2008-2009"}
}