Halabi, S., et al. Prognostic model for predicting survival in men with hormone-refractory metastatic prostate cancer. J Clin Oncol, 21:1232-1237, 2003 41. Galsky, M and Kelly, Use of nomograms for predicting survival in patients with castrate prostate cancer. Urology, 62 (suppl 6B): 119-127, 2003 42.