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  • Title: Distribution of the ABO system and Rh factor in Sardinia.
    Author: Porcella P, Vona G.
    Journal: Anthropol Anz; 1987 Dec; 45(4):309-21. PubMed ID: 3124712.
    Abstract:
    The authors examine the genetic structure of the Sardinian population based on the gene frequencies of the ABO blood group system and the Rh factor. The sample, composed of 13,972 individuals, is subdivided on the basis of altitude zones (mountain, internal hills, coastal hills and plains) and by historical-geographic zones. Also examined are the frequencies of a group of communities of different altitude and historical-geographic zones. The results point to genetic heterogeneity within both altitude and historical-geographic zones as well as within the single communities. A distribution gradient is seen for the IA and I0 alleles of the ABO system, namely: mountains, internal hills, coastal hills, plains.
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