New York Times, January 25, 2011

A fifth of the nation’s physicians are over 65, and that proportion is expected to rise. Many doctors retain their skills and sharpness of mind into their 70s and beyond. But physicians are hardly immune to dementia, Parkinson’s disease, stroke and other ills of aging. And some experts warn that there are too few safeguards to protect patients against those who should no longer be practicing. More…