Portrait De Ignatius Semmelweis [Getty Images]

NON SPECIFIE NON DATE: Portrait du grand savant hongrois Ignatius Semmelweis au XIXe siecle. (Photo by Keystone-France\Gamma-Rapho via Getty Images) — see more

NON SPECIFIE NON DATE: Portrait du grand savant hongrois Ignatius Semmelweis au XIXe siecle. (Photo by Keystone-France\Gamma-Rapho via Getty Images)

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