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Jon S. Pitcher, Principal Accounting Officer. Mr. Pitcher has been our Principal Accounting Officer since November 2004. Mr. Pitcher previously served as our Corporate Controller and Director of Revenue since December 2003. Mr. Pitcher was self-employed from April 2001 until December 2003, providing accounting and consulting services to private and publicly-held clients. From 1991 to March 2001, Mr. Pitcher was Chief Financial Officer of OXIS International, Inc., a pharmaceutical development company. | 