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Credit
Onderzoekingen gedaan in het Physiologisch Laboratorium der Utrechtsche Hoogeschool / uitgegeven door F.C. Donders en Th. W. Engelmann ; 3 reeks, IX. Public Domain Mark. Source: Wellcome Collection.
Provider
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.