Sanofi-Aventis (France) Reported Weighing Higher Genzyme Corporation Offer

PARIS/LONDON (Reuters) - Sanofi-Aventis (SASY.PA) is considering whether to raise its $18.5 billion bid for U.S. drugmaker Genzyme (GENZ.O) as soon as next week, Bloomberg said on Wednesday, citing people with knowledge of the matter.

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