1. From the Department of Pathology, Emory University Hospital, Atlanta, Ga (Dr Amin); Department of Laboratory Medicine, Credit Valley Hospital, Mississauga, Ontario (Dr Srigley); Department of Pathology, Wayne State University School of Medicine, Detroit, Mich (Dr Grignon); Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY (Dr Reuter); Department of Pathology, Barnes-Je