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Detail of the Danse macabre (Totentanz) in the church St. Marien in Lübeck, Germany (Bernt Notke; ~1460; now destroyed). By analogy to this 15th century type of imagery, in the UMD family of decay pathways UPF1 represents Death (the skeleton in the picture) who leads the various types of UMD targets (representatives of any age and rank) to their final destiny.
