1. From the Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts (Dr Schnitt); the Department of Therapeutic Radiology, Yale School of Medicine, Yale University, New Haven, Connecticut (Dr Moran); the School of Public Health, Sydney Medical School, University of Sydney, Sydney, Australia (Dr Houssami); and the Breast Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York (Dr Morrow).