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Episode 12: The extraction of races
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Episode 11: The genetic effect of marriage between relatives (5/5)
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Episode 10: The genetic effect of marriage between relatives (4/5)
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Hits: 1614
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Episode 9: The genetic effect of marriage between relatives (3/5)
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Episode 8: The genetic effect of marriage between relatives (2/5)
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Hits: 1546
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Episode 7: The genetic effect of marriage between relatives (1/5)
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Hits: 1441
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Episode (6): Birth Control's extent of usefulness (4-4)
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Episode (5) : Birth Control's extent of usefulness (3-4)
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Hits: 5702
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Episode 4: Birth Control's extent of usefulness (2-4)
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Hits: 2658
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Birth Control's extent of usefulness 1-4
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Hits: 9623
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