Michael A. Rocca has been a member of our board of directors since March 2008. From 1994 to 2000, Mr. Rocca served as Senior Vice President and Chief Financial Officer of Mallinckrodt Inc., a pharmaceutical and medical device manufacturer. Prior to 1994, Mr. Rocca served in a variety of finance positions with Honeywell Inc., a diversified technology and manufacturing company, including Vice President, Treasurer and Vice President, Finance Europe. Mr. Rocca also serves as a Director of St. Jude Medical Inc. and Lawson Software, Inc. Mr. Rocca previously served as a Director of Ligand Pharmaceuticals, Inc. from 1999 to 2006.