Alan L. Heller has been a Director of the Company since September 2006. Since March 2006 Mr. Heller has been an Operating Partner at a private equity firm Water Street Healthcare Partners. Mr. Heller currently serves on the Board of Directors of two public companies: Savient Pharmaceuticals Inc. (NasdaqGM: SVNT) and Northfield Laboratories Inc. (NasdaqGM: NFLD). From November 2004 to November 2005 Mr. Heller was President and Chief Executive Officer of American Pharmaceutical Partners Inc. a company that develops manufactures and markets branded and generic injectable pharmaceutical products. From January 2004 to November 2004 Mr. Heller served as an investment advisor on life science transactions to One Equity Partners a private equity arm of JP Morgan Chase. From 2000 to 2004 Mr. Heller also served as Senior Vice President and President Global Renal operations at Baxter Healthcare Corporation (NYSE:BAX). Prior to joining Baxter Mr. Heller spent 23 years at G.D. Searle. He served in several senior level positions including Co-President and Chief Operating Officer with responsibility for all commercial operations worldwide and Executive Vice President and President Searle Operations.