Patrick C. Walsh, MD, MD

Patrick C. Walsh, MD, the world’s foremost authority on prostate cancer, is the Distinguished Service Professor of Urology at the Brady Urological Institute of the The Johns Hopkins Medical Institutions in Baltimore, Maryland. Dr. Walsh was honored as the 2007 National Physician of the Year for Clinical Excellence by America’s Top Doctors.

Janet Farrar Worthington is an award-winning science writer.