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Seven months after the DOJ filed a lawsuit to stop the $37B Aetna-Humana merger,\\xa0 along with a complementary Anthem-Cigna merger,\\xa0 a district judge rules in favor of the DOJ\\u2014but Aetna promises a quick appeal. What does a potential merger mean for the millions of Medicare Advantage customers who rely on these mega insurers for coverage?\\xa0\\xa0
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