Cancer patient undergoing treatment from the new 200, 000 volt super x-ray machine developed at Columbia University by the Department of Physics and engineers from General Electric. The patient must be protected by lead shields with only the cancer area exposed. New York, New York: May 16, 1924. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 5100 px × 3989 px |
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