CONFIDENTIAL 25 Post-Merger Board of Directors Joel Adams PTI Director since 2003 Founder, President and Managing General Partner of Adams Capital Management, Inc., a venture capital Firm Larry Feinberg Chairman, Oracle Director since 2005 Founder and Managing General Partner of Oracle Partners, L.P.; President of Oracle Investment Management Kevin Johnson PTI and Oracle Director since 2005 Former CEO, President, and Chairman of DIANON Systems, Inc.; Chairman of Aureon Laboratories Inc.; Director of MDdatacor, Inc.; Advisory board member of New Leaf Venture Partners Rich Kollender PTI Director since 2006 Principal and partner of Quaker BioVentures; C.P.A. and Member of American and Pennsylvania Institutes of Certified Public Accountants Stan Lapidus Chairman, PTI Director since 2001 Founder and CEO of Helicos BioSciences Corporation; Founder and former President of EXACT Sciences Corporation and Cytyc Corporation Joel Liffmann President, COO, Oracle Director since 2005 Principal of Oracle Investment Management; Member of Oracle Strategic Capital, LLC Per Lofberg Oracle Director since 2005 President and CEO of Merck Capital Ventures, LLC; Former President and Chairman of Merck-Medco Managed Care, LLC; Director of Cytel, Inc.; Director of Ventiv Health, Inc.; Director of PHT, Inc.; Director of ImpactRx, Inc. Sean McDonald President, CEO and PTI Director since 2001 Director of Respironics, Inc.; Founder of Automated Healthcare and Group President of McKesson Automation Group Ken Weisshaar PTI Director since 2007 Board member of Orthofix International N.V.; Former director of Digene Corporation; Former COO and Strategy Advisor for Sensatex, Inc.; Former CFO of Becton Dickinson & Co. |