Thank you very much. Good morning, everybody, and welcome to Regeneron Pharmaceuticals' fourth quarter and year-end 2015 conference call. An archive of this webcast will be available on our Web site under Events and Presentations for 30 days. Joining me on the call today are Dr. Leonard Schleifer, Founder, President and Chief Executive Officer; George Yancopoulos, Founding Scientist, President of Regeneron Laboratories and Chief Scientific Officer; Bob Terifay, Executive Vice President, Commercial; and Bob Landry, Chief Financial Officer. After our prepared remarks, we will open the call for Q&A. I would also like to remind you that remarks made on this call include forward-looking statements about Regeneron. Such statements may include, but are not limited to those related to Regeneron and its products and businesses, sales and expense forecasts, financial forecasts, development programs, collaborations, finances, regulatory matters, intellectual property and competition. Each forward-looking statement is subject to risks and uncertainties that could cause actual results and events to differ materially from those projected in such statements. A more complete description of these and other material risks can be found in Regeneron's filing with the United States Securities and Exchange Commission, or SEC, including its Form 10-Q for the quarter ended September 30, 2015 and Form 10-K for the year ended December 31, 2015, which was expected to be filed with the SEC later this morning. Regeneron does not undertake any obligation to update publicly any forward-looking statement, whether as a result of new information, future events, or otherwise. In addition, please note that GAAP and non-GAAP measures will be discussed on today's call. Information regarding our use of non-GAAP financial measures and a reconciliation of those measures to GAAP are available in our financial results press release, which can be accessed on our Web site at www.regeneron.com. Once our call concludes, our CFO, Bob Landry and the IR team will be available to answer further questions. With that, let me turn the call over to our President and Chief Executive Officer, Dr. Leonard Schleifer.