From the Department of Pathology and Laboratory Medicine (G.A.), University of Pennsylvania Medical Center, Philadelphia, Pennsylvania; Department of Pathology (J.F.S., S.O., D.L.P.), Vanderbilt University Medical Center, Nashville, Tennessee; Department of Pathology (I.J.B.), Mount Sinai School of Medicine, New York, New York; Department of Pathology (C.R.), Mayo Clinic, Rochester, Minnesota, U.S.A.; and Department of Pathology (J.H.), Cross Cancer Institute, Edmonton, Alberta, Canada.
Presented in part at the 91st Annual Meeting of the United States and Canadian Academy of Pathology, Chicago, IL, February 23 to March 1, 2002.
Address correspondence and reprint requests to Geza Acs, MD, PhD, Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical Center, 6 Founders Pavilion, 3400 Spruce Street, Philadelphia, PA 19104, U.S.A.; e-mail: [email protected]