1. From the Department of Hematopathology, Pathology Associates of Albuquerque, Albuquerque, New Mexico (Dr Sever); the Department of Pathology, Berkshire Medical Center, Pittsfield, Massachusetts (Dr Abbott); Medical Laboratory Associates, Seattle, Washington (Dr de Baca); the Department of Pathology, University of Texas MD Anderson Cancer Center, Houston (Dr Khoury); the Department of Pathology, U