Rackham School of Graduate Studies

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The Rackham School of Graduate Studies today

The Rackham School of Graduate Studies today

Harlan Hatcher, Thomas Francis, Jonas Salk, and Basil O'Connor (left to right) at the Polio Vaccine announcement, 1955.

Harlan Hatcher, Thomas Francis, Jonas Salk, and Basil O’Connor (left to right) at the Polio Vaccine announcement, 1955.

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