Yashar Hirshaut is a medical oncologist specializing in the treatment of breast cancer. A graduate of the Albert Einstein College of Medicine, he completed his oncology training at the National Cancer Institute in Bethesda, Maryland, and at the Memorial Sloan-Kettering Cancer Center in New York. Form 1970 to 1986 he served as an attending physician at Memorial Sloan-Kettering on the Clinical Immunology Service and an associate professor of medicine at the Cornell University Medical College. He was also head of the Laboratory for Immuno-diagnosis at Sloan-Kettering. In addition to being in priv...