Alfred Ploetz
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Otmar Freiherr von Verschuer
Mankind Quarterly
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Wolfach
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Kaiser Wilhelm Society
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Rockefeller Foundation
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Othmar
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Eugen Fischer
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Twin study
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Ronald Fisher
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Josef Mengele
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July 16
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Intelligence quotient
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August 8
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Ottmar von Verschuer
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Ottmar Freiherr von Verschuer
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Otmar von Verschuer
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