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Stab-in-the-back myth - Wikipedia
Blood Purity: How a Bizarre Obsession Advanced Science
Nazi eugenics - Wikipedia
Nazi racial theories - Wikipedia
How German Blood Purity Research Advanced Medical Knowledge
Bad Blood: The Story Of Eugenics - Media Centre - BBC
Eugenics | Holocaust Encyclopedia
“Ridding the Race of His Defective Blood” — Eugenics in the
Bad Blood: The Story of Eugenics, You've Got Good Genes - BBC
BBC Radio 4 - Bad Blood: The Story of Eugenics, Rassenhygiene