1. From the Department of Pathology, Medical College of Georgia, Augusta (Drs Wade and Allsbrook); Departments of Pathology (Dr Shippey), General Surgery (Dr Hamon), and Medicine (Division of Family Practice) (Dr Smoak), The Regional Medical Center of Orangeburg and Calhoun Counties, Orangeburg, SC; and the Department of Pathology, The Johns Hopkins Medical Institutions, Baltimore, Md (Dr Argani)