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Deuxième lettre sur la syphilis : 1⁰ Danger du traitement par la cautérisation des ulcères vénériens primitifs : 2⁰ Inoculation du virus vénérien, son danger et ses conséquences. 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.