1. From the Department of Pathology and Laboratory Medicine, Allegheny General Hospital, Pittsburgh, Pa (Drs Grzybicki and Raab, and Ms Vrbin); Rio Grande Pathology Associates, St Joseph Hospital, Albuquerque, NM (Mr Reilly); and the Department of Pathology, Henry Ford Hospital, Detroit, Mich (Dr Zarbo). Dr Grzybicki, Dr Raab, and Ms Vrbin are currently at the University of Pittsburgh School of Medi