Stephen M Schleicher1, Andrew D Seidman2. 1. Breast Medicine Service, Memorial Sloan Kettering Cancer Center, New York, New York2Center for Health Policy and Outcomes, Memorial Sloan Kettering Cancer Center, New York, New York. 2. Breast Medicine Service, Memorial Sloan Kettering Cancer Center, New York, New York3Department of Medicine, Weill Cornell Medical College, New York, New York.