Michael D. Gershon M.D., is chairman of the Department of Anatomy and Cell Biology at Columbia University's College of Physicians and Surgeons at the Columbia-Presbyterian Medical Center in New Yor...ver maisMichael D. Gershon M.D., is chairman of the Department of Anatomy and Cell Biology at Columbia University's College of Physicians and Surgeons at the Columbia-Presbyterian Medical Center in New York City.ver menos