| The Company, and its independent registered public accounting firm Deloitte & Touche LLP, had concluded that the Company’s accounting treatment in respect of the value ascribed to in-process research and development (IPR&D) acquired as part of the Transkaryotic Therapies, Inc. acquisition was in accordance with generally accepted accounting principles. However, following the identification by the Company’s staff of the omission that resulted in the 2005 restatement, the Company’s management has concluded that the Company did not identify and apply correctly generally accepted accounting principles as they related to the original accounting for IPR&D because it did not have adequate specialist internal accounting resources at the time of the original accounting for IPR&D. Recognizing the inherent limitations of a retrospective evaluation, the Company’s management further concluded that, as a result of this resource inadequacy, a material weakness had existed in its internal control over financial reporting with respect to the identification and application of generally accepted accounting principles as they related to the accounting for IPR&D acquired in a business combination at the time of the original accounting for the IPR&D and, as a result, its disclosure controls and procedures for the identification and application of generally accepted accounting principles as they related to the accounting for IPR&D acquired in a business combination were not effective in the periods covered by, and as asserted in, its reports for the year ended December 31, 2005 and the periods ended September 30, 2005 and March 31, June 30 and September 30, 2006. During 2006, as part of the Company’s ongoing improvement of its internal control over financial reporting, the Company recruited additional staff with appropriate expertise, whose full time responsibility was to focus on selection and application of generally accepted accounting principles and related financial reporting matters. As a result of the improved controls implemented during 2006, the omission that resulted in the 2005 restatement was identified and resolved. Therefore, as of December 31, 2006, the Company’s management determined that the inadequacy in its disclosure controls and procedures for the identification and application of generally accepted accounting principles as they related to the accounting for IPR&D acquired in a business combination had been remedied. The Company intends to include the immediately preceding three paragraphs as part of its disclosure in Item 9A of its Form 10-K for the year ended December 31, 2006, which it anticipates filing during the week of February 26, 2007. Further, based on the remedial action outlined above with respect to its disclosure controls and procedures for the identification and application of generally accepted accounting principles as they related to the accounting for IPR&D acquired in a business combination, the Company has concluded that, |