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H. Craig Dees Ph.D. 54 has served as our Chief Executive Officer and as a member of our Board of Directors since we acquired PPI on April 23 2002. Before joining us from 1997 to 2002 he served as senior member of the management team of Photogen Technologies Inc. including serving as a member of the Board of Directors of Photogen from 1997 to 2000. Prior to joining Photogen Dr. Dees served as a Group Leader at the Oak Ridge National Laboratory and as a senior member of the management teams of LipoGen Inc. a medical diagnostic company which used genetic engineering technologies to manufacture and distribute diagnostic assay kits for auto-immune diseases and TechAmerica Group Inc. now a part of Boehringer Ingelheim Vetmedica Inc. the U.S. animal health subsidiary of Boehringer Ingelhem GmbH an international chemical and pharmaceutical company headquartered in Germany. He earned a Ph.D. in Molecular Virology from the University of Wisconsin - Madison in 1984. | 