Pedestrians pass Genzyme's headquarters in Cambridge, Mass., Wednesday, Feb. 16, 2011. The French drug maker Sanofi-Aventis SA agreed to buy Genzyme Corp. in an all-cash $20.1 billion deal after ... more 
Pedestrians pass Genzyme's headquarters in Cambridge, Mass., Wednesday, Feb. 16, 2011. The French drug maker Sanofi-Aventis SA agreed to buy Genzyme Corp. in an all-cash $20.1 billion deal after almost 9 months of negotiations. less 
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Associated Press | Photo By Josh Reynolds
Thu, Feb 17, 2011 2:36 AM EST