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Two of the most notorious of these abuses were the experiments of Nazi physicians that became a focus of the post-World War II Doctors' Trial, and the Tuskegee Syphilis Study, a project conducted between 1932 and 1972 by the U.S. Public Health Service on black men in rural Alabama.
From 1920 to 1927, she worked for the U.S. Public Health Service and was later on the research staff of the University of California.