Thank you, Sabrina. And thank you all for joining us for the Exelixis fourth quarter and full-year 2017 financial results conference call. Joining me on today's call are Mike Morrissey, our President and CEO; Gisela Schwab, our Chief Medical Officer; Peter Lamb, our Chief Scientific Officer; Chris Senner, our Chief Financial Officer; and P.J. Haley, our Senior Vice President, Commercial, who will together review our corporate, development, financial, and commercial progress for the fourth quarter ended December 31, 2017 as well as recent key development and corporate events. As a reminder, we are reporting our financial results on a GAAP basis only. And as usual, the complete press release with our results can be accessed through our website at exelixis.com. During the course of this presentation, we will be making forward-looking statements regarding future events and the future performance of the Company. This includes statements about possible developments regarding clinical, regulatory, commercial, financial, and strategic matters. Actual events or results could of course differ materially. We refer you to the documents we file from time-to-time with the SEC which under the heading Risk Factors, identify important factors that could cause actual results to differ materially from those expressed by the Company verbally and in writing today, including, without limitation. Risks and uncertainties related to product commercial success, market competition, regulatory review and approval processes, conducting clinical trials, compliance with applicable regulatory requirements, the availability of data at the reference times, our dependence on collaboration partners and the level of costs associated with the commercialization, research and development – business development and other activities. And with that, I will turn the call over to Mike.