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Astellas Pharma completed the acquisition of OSI Pharmaceuticals for $4bn.
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Service Providers
financial advisors
Centerview Partners
legal advisors
Skadden Arps Slate Meagher & Flom
financial advisors
Citigroup
legal advisors
Morrison Foerster
or
Principals
target
OSI PHARMACEUTICALS
bidder
ASTELLAS PHARMA INC
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