1. From the Department of Pathology, Wentworth-Douglass Hospital, Dover, NH (Dr Novis); the Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minn (Dr Dale); Diagnostic Service Line, Southern Arizona Veterans Administration Health Care System, Tucson (Dr Schifman); the Department of Pathology, Palos Community Hospital, Palos Heights, Ill (Dr Ruby); and the College of American