Sliepota i eia prichiny sredi krest'ianskago naseleniia nodinskago uiezda, viatskoi gubernii : dissertatsiia na stepen' doktora meditsiny / V.S. Sergieva.

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Sliepota i eia prichiny sredi krest'ianskago naseleniia nodinskago uiezda, viatskoi gubernii : dissertatsiia na stepen' doktora meditsiny / V.S. Sergieva. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.