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Credit
Obshchiia griazevyia i glinianyia vann, sravnitel'no-fiziologicheskiia nabliudeniia : dissertatsiia na stepen' doktora meditsiny / A.N. Pokrovskago ; tsenzorami, po naznacheniiu Konferentsii, byli professory V.A. Manassein i Iu.T. Chudnovskii i privam-dotsem P.V. Burzhinskii. 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.