I am a board-certified surgeon with clinical expertise in diagnosing and treating breast cancer. I am investigating the use of exercise to help control weight gain in women who are undergoing chemotherapy and to help prevent lymphedema in women. I am also involved in training young physicians in ways to communicate with patients and their families in a sensitive and productive manner. For general information, call Memorial Sloan Kettering at 212-639-2000, 24 hours a day, seven days a week. To make an appointment, call us at 800-525-2225, Monday through Friday between 8:30 AM and 5:30 PM ET.