Dr. Ryan is an internationally recognized genitourinary (GU) oncologist with expertise in the biology, treatment and supportive care of men with prostate cancer. He previously served as Director of the Hematology, Oncology and Transplantation Division at the University of Minnesota, and Associate Director for Clinical Research in the National Cancer Institute (NCI) designated Masonic Comprehensive Cancer Center. Previously he was on the faculty of the University of California, San Francisco, where he served as Program Leader for Genitourinary Medical Oncology and held the title of Thomas Perkins Distinguished Professor in Cancer Research. Dr. Ryan previously led the Advanced Prostate Cancer Cadre in the Alliance for Clinical Trials in Oncology, a national clinical trials group, and is past Chair of the NCI GU Steering Committee’s Prostate Cancer Task Force. He has published over 200 articles and chapters in the world’s leading medical journals and is author of the book The Virility Paradox: The Vast Influence of Testosterone on Our Bodies, Minds, and the World We Live In.