Thank you, Rhonda, and thank you all for joining us for the Exelixis' first quarter 2016 financial results conference call. Joining me on today's call are Mike Morrissey, our President and CEO; Gisela Schwab, our Chief Medical Officer; P.J. Haley, our Vice President of Commercial; and Chris Senner, our Chief Financial Officer who will together review our corporate, development, commercial and financial progress for the quarter ended April 1, 2016, as well as recent key development and corporate events. Peter Lamb, our Chief Scientific Officer is also with us and will participate in the question-and-answer session of this call. 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 Exelixis' files 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, risk and uncertainties related to the commercial planning, product commercial success and market competition, uncertainties related to the availability of data at the reference times, risk and uncertainties related to the regulatory review and approval processes, risk associated with conducting clinical trials and compliance with applicable regulatory requirements, risk and uncertainties associated with the Exelixis dependence on its collaboration partners and ability to maintain its rights under existing collaborations and risk regarding Exelixis' financial outlook and the sufficiency of the Company's capital and other resources over time. With that, I will turn the call over to Mike.