@inbook {petkau1996statistical,
	title = {Statistical and design considerations for multiple sclerosis clinical trials},
	booktitle = {Multiple Sclerosis: Advances in Clinical Trial Design, Treatment and Future Perspectives},
	year = {1996},
	pages = {63{\textendash}103},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	chapter = {4},
	address = {London},
	author = {Petkau, A.John}
}
