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Credit
De vaccinatie. Proefschrift ter Verkrijging van den Graad van Doctor in de Staatswetenschap, aan de Rijks-Universiteit te Leiden ... 21 October 1892, ... / door Willem Dicke. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.