Margaret S. Pearle, M.D., Ph.D.: Professor, Department of Urology, and Center for Mineral Metabolism and Clinical Research. B.A./M.S.: University of Chicago. M.D./Ph.D.: University of Chicago. Residency: Northwestern University Medical School. Fellowship in Endourology and Minimally Invasive Surgery: Washington University, St. Louis. Dr. Pearle is currently a Professor with joint appointments in the Department of Urology and the Mineral Metabolism Center, and is holder of the Ralph C. Smith Distinguished Chair in Urologic Education. Her research interests include evaluation of dietary and medical therapies for kidney stones prevention, assessment of outcomes for minimally invasive surgical treatments and development and assessment of resident teaching tools. In her clinical practice, she primarily sees patients needing medical and/or surgical treatment for kidney stones and patients with some cancers or blockage of the upper urinary tract. She has published and spoken extensively in her area of interest.