After medical school, she did residencies at Bellevue Hospital (1945–46) and Harlem Hospital (1947–48), completing her tenure at Harlem Hospital as chief resident.[7] In 1949 she joined her father in research at the Harlem Hospital Cancer Research Center, which he had founded,[7] succeeding him as director when he died in 1952.[2] In 1955 she accepted a research appointment at New York University Bellevue Medical Center, as Associate Professor of Surgical Research and Director of Cancer Research.[7]