Retinitis pigmentosa with an analysis of seventeen cases appearing in deaf-mutes : being an essay for which was awarded the Alvarenga Prize of the College of Physicians of Philadelphia, July, 1908 / by William T. Shoemaker ; laboratory examinations of the blood and urine by John M. Swan.

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Credit: Retinitis pigmentosa with an analysis of seventeen cases appearing in deaf-mutes : being an essay for which was awarded the Alvarenga Prize of the College of Physicians of Philadelphia, July, 1908 / by William T. Shoemaker ; laboratory examinations of the blood and urine by John M. Swan. Source: Wellcome Collection.

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