@article{Ellenberg1994,
	title = {Statistical issues in designing clinical trials of aids treatments
	and vaccines},
	author = {Susan S. Ellenberg and Dennis O. Dixon},
	journal = {Journal of Statistical Planning and Inference},
	month = {Nov},
	number = {1-2},
	pages = {123--135},
	url = {http://www.sciencedirect.com/science/article/B6V0M-45FCH4D-9/1/79d39dd907318b50c06c924b7f5f3ae3},
	volume = {42},
	year = {1994},
	biburl = {http://www.bibsonomy.org/bibtex/26e08917429a3826f500f6b3403d05044/smicha},
	keywords = {Simultaneous enrollment study }
}