Enrique Rodriguez-Boulan, M.D., professor of cell biology in ophthalmology at Weill Cornell Medical College presents, "Epithelial Polarity: Historical Perspective and Recent Insights" at the Dennis Shields memorial symposium. Dennis Shields, Ph.D., was a member of Einstein's faculty for 30 years and a leader in cell biology. The event combines personal recollections of Dr. Shields and presentations of research based on his work.