1. From the Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City (Dr Talbert); the Department of Pathology, University of Utah and ARUP Laboratories, Inc, Salt Lake City (Dr Ashwood); the Department of Pathology, Greenville Hospital System and Pathology Associates & Consultants, Greenville, South Carolina (Dr Brownlee); ACL Laboratories, Great Lakes Pathologists, SC,