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Scarr, S., Pakstis, A.J., Katz, S.H. et al. Absence of a relationship between degree of white ancestry and intellectual skills within a black population. Hum Genet 39, 69–86 (1977). https://doi.org/10.1007/BF00273154
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DOI: https://doi.org/10.1007/BF00273154