<p>The pharmaceutical company Astellas Pharma Inc. of Tokyo is buying OSI Pharmaceuticals, Inc. of Melville for $4 billion. Here are<a href="http://www.newsday.com/business/osi-pharmaceutical-bought-by-tokyo-company-1.1915592"> the details</a>.</p>

The pharmaceutical company Astellas Pharma Inc. of Tokyo is buying OSI Pharmaceuticals, Inc. of Melville for $4 billion. Here are the details.

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