James B. Duke Distinguished Professor of Biostatistics and Bioinformatics, and co-chief, Division of Biostatistics, Department of Biostatistics and Bioinformatics at Duke University Medical Center. Her most significant contributions concern building and validating prognostic models of outcomes for prostate cancer and identifying surrogate endpoints for overall survival. Fellow of the Society for Clinical Trials, the American Statistical Association and the American Society for Clinical Oncology.