A piece of steel in the ciliary body located by means of Roentgen's x-rays : extraction with the elctro-magnet and preservation of good vision after two similar operative procedures, without the use of the rays, had been unsuccessful / by G. E. de Schweinitz.

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A piece of steel in the ciliary body located by means of Roentgen's x-rays : extraction with the elctro-magnet and preservation of good vision after two similar operative procedures, without the use of the rays, had been unsuccessful / by G. E. de Schweinitz. Public Domain Mark. Source: Wellcome Collection.

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