| http://www.w3.org/ns/prov#value | - A preference for first-cousin marriages, which harks back to pre-Islamic tribal practices (to keep wealth in the family and to benefit from daughters??? fertility), over approximately 50 generations has led to widespread inbreeding with negative consequences, including about twice the incidence rate of such genetic disorders as thalassemia, sickle-cell anemia, spinal muscular atrophy, diabetes, de
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