Which 2019 pharmaceutical merger created one of the world's largest specialty drug companies with a combined portfolio focused on oncology, immunology, and rare diseases?

The medical industry has seen numerous significant mergers that have reshaped the pharmaceutical landscape. These strategic consolidations have created some of the largest healthcare companies in the world, combining research capabilities, product portfolios, and market reach. Test your knowledge about one of the most significant pharmaceutical mergers in recent history that dramatically changed the industry's competitive landscape.

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Bristol-Myers Squibb and Celgene
Pfizer and Allergan
AbbVie and Takeda
Merck and Sanofi