Evaluation of prostate-specific antigen declines for surrogacy in patients treated on SWOG 99-16

Daniel P. Petrylak, Donna Pauler Ankerst, Caroline S. Jiang, Catherine M. Tangen, Maha H.A. Hussain, Primo N. Lara, Jeffrey A. Jones, Mary Ellen Taplin, Patrick A. Burch, Manish Kohli, Mitchell C. Benson, Eric J. Small, Derek Raghavan, E. David Crawford