Public domain
Detroit, Michigan. New method of making x-ray photographs size 4x5 inches instead of larger. Used at the Herman Kiefer Hospital for Communicable Diseases, to show various stages of tuberculosis. Apparatus for controlling the voltage and strength of the x-rays
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Credit lineDetroit, Michigan. New method of making x-ray photographs size 4x5 inches instead of larger. Used at the Herman Kiefer Hospital for Communicable Diseases, to show various stages of tuberculosis. Appar. 1939-01-01. Siegel, Arthur S.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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