Public domain
Chicago, Illinois. Provident Hospital. Dr. Harold Thatcher administering fever therapy to a patient
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineChicago, Illinois. Provident Hospital. Dr. Harold Thatcher administering fever therapy to a patient. 1942-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.