Design and progress of a trial of selenium to prevent prostate cancer among men with high-grade prostatic intraepithelial neoplasia

James R. Marshall, Wael Sakr, David Wood, Donna Berry, Catherine Tangen, Felicia Parker, Ian Thompson, Scott M. Lippman, Ronald Lieberman, David Alberts, David Jarrard, Charles Coltman, Peter Greenwald, Lori Minasian, E. David Crawford