Error in Box. In the Lessons in Leadership article titled “Interview With Alfred Sommer, MD, MHS” by Sommer and Bartley, published in the May 2011 issue of the Archives (2011;129[5]:653-654), a typographical error occurred in the “Introduction to ‘Lessons in Leadership’” box. The author's affiliation should have appeared as follows: “George B. Bartley, MD, Chair Emeritus, Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota, and Chief Executive Officer Emeritus, Mayo Clinic, Jacksonville, Florida.” This article was corrected online.