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abortion (6)
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adolescents (4)
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adoption (1)
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age (2)
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aging (2)
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agrarian reform (1)
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agricultural activity (1)
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agricultural land (2)
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agricultural production (2)
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agricultural productivity (1)
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agricultural workers (3)
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agriculture (6)
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AIDS (5)
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alcohol consumption (2)
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alimony (1)
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attitudes (1)