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27. Deirdre Connelly
President, North America Pharmaceuticals
GlaxoSmithKline (GSK)
2009 rank: 37
Age: 50

This Eli Lilly alum's $15-billion-a-year business hinges on its respiratory franchise. The hope: that Relovair, now in clinical trials, replaces Advair, the blockbuster GSK drug whose patent soon expires.

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Last updated September 30 2010: 2:47 PM ET
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