Igor Matushansky is a fellow in medical oncology and a postdoctoral fellow in the laboratory of Carlos Cordon-Cardo@Memorial Sloan-Kettering Cancer Center in New York. He attended Columbia University for undergraduate studies and obtained his Ph.D. and M.D. from Yeshiva University's Albert Einstein College of Medicine. Following a residency in internal medicine@the Weil-Cornell Medical Center, his work has focused on the relation between cellular differentiation and tumor formation and the application of this knowledge to the management of sarcomas. Address: Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, Room C1179, New York, NY 10021. Internet: matushai@mskcc.org