New Survey on 2010 Tysabri Sales Background: • Worldwide 2009 Tysabri sales were $1.059B • Annualized 4Q09 worldwide Tysabri sales were (4)$298.0M = $1.192B Q: What will 2010 worldwide Tysabri sales be? a) Less than $1.1B b) $1.1-1.399B c) $1.4-1.699B d) $1.7-1.999B e) $2B or more To vote, go to http://www.investorshub.com/boards/board_surveymenu.asp?board_id=1418 and select survey #129.