Here's a breakdown of Big Pharma earnings from Merck, Pfizer, Eli Lilly

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Here's a breakdown of Big Pharma earnings from Merck, Pfizer, Eli Lilly

CNBC's Meg Tirrell joins "Squawk Box" to discuss how earnings results from Pfizer, Merck and Eli Lilly compare.
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Tue, Apr 30 20197:15 AM EDT