@book{94935,
	author = {O'Kelly, Michael. and Ratitch, Bohdana.},
	title = {Clinical trials with missing data :},
	publisher = {John Wiley & Sons Inc.,},
	year = {2014.},
	series = {Statistics in practice},
	address = {Chichester, West Sussex :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10839238}
}