Webcast Calendar [Please see updating procedure at the end of this post. All times are U.S. ET unless indicated otherwise.] NOTE: ANYONE MAY UPDATE THIS FILE Edits: Removed obsolete entries, Added Canaccord Adams Hepatitis C Conference Canaccord Adams Hepatitis C Conference InterContinental the Barclay New York <a href="http://www.newswire.ca/en/webcast/viewEvent.cgi?eventID=2606120" rel="nofollow" target="_blank">http://www.newswire.ca/en/webcast/viewEvent.cgi?eventID=2606120</a> April 7, 2009 Deutsche Bank Securities 34th Annual Health Care Conference Boston, MA May 18-19, 2009 <a href="http://conferences.db.com/americas/healthcare09/" rel="nofollow" target="_blank">http://conferences.db.com/americas/healthcare09/</a> (schedule not yet posted) Goldman Sachs Healthcare Conference June 9 2009 Morgan Stanley Global Healthcare Conference September 14 - 15 2009 Merrill Lynch Pharma Conference September 15 - 17 2009 UBS Global Life Science Conference September 21, 2009 -- Procedure for Updating Calendar When adding or modifying entries, please follow these steps: 1. Copy the complete text from the old calendar. 2. Make your additions or modifications, inserting new items in alphabetical or chronological order as the case may be. 3. Near the top of the message, give a very brief description of your changes (e.g. “Edits: Added JPMorgan conference”). 4. Post the updated calendar in a new message as a reply to the message with the old calendar.