1. Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
2. Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
3. Breast Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
4. Division of Plastic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, Pennsylvania