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Die Bluterkrankheit in ihren Varianten : Scorbut, Purpura simplex, Purpura (Peliosis) rheumatica, Purpura hämorrhagica, Erythema nodosum, Hämophilie, Nabelbluten, Blutschwitzen und Fettentartung der Neugeborenen / dargestellt von Wilhelm Koch. Public Domain Mark. Source: Wellcome Collection.