"Unveroffentlichte Mitteilungen" (unpublished communications), case notes in German on two unidentified children, one boy, one girl.

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"Unveroffentlichte Mitteilungen" (unpublished communications), case notes in German on two unidentified children, one boy, one girl. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). Source: Wellcome Collection.