Thank you, Dan, and good afternoon to everyone and thank you for joining the call. As you heard from Dan, we've had a very productive start to the year with submission of the sBLA for Building 55, the initial filing of the Form 10 in support of the spin of Aptevo Therapeutics, and then the more recent confirmation by CDC of their intent to issue a follow-on procurement contract ensuring an uninterrupted supply of BioThrax in the SNS at the conclusion of our existing contract, all our top priorities we identified for completion in 2016. We were pleased to have progressed all three so early in the year. I'm going to keep my comments on our quarterly financial performance brief as our press release and 10-Q, which will be filed by the end of the week, provide the details of the financial metrics for the quarter compared to last year. I will focus my comments instead on trends in the business. First, operations continued to perform extremely well, as evidenced by our revenue growth and our margin performance. Our gross margin for the quarter was 64%, comfortably in the middle of our expected range. Secondly, our net R&D cost continued to be managed carefully, and as a result, continued the favorable trend started two years ago following our decision to look for non-dilutive funding and collaboration opportunities for some of our development assets. For the quarter, net R&D expenses were $2.4 million, down from Q4 of last year of $7.6 million. Next, SG&A expense continued to be impacted by costs associated with executing the spin of Aptevo Therapeutics as well as the execution of our strategic plan, specifically diligence cost to support M&A. Following the completion of the spin, SG&A costs are projected to be significantly reduced. Also, our EBITDA continues to improve and trends favorably on a trailing 12-month basis, with an additional $17 million contributed in the first quarter of this year. Lastly, our balance sheet remains very strong. With a cash balance at quarter-end of approximately $340 million, we continue to maintain a very sound capital base from which to execute on our business plan and pursue the achievement of the 2020 financial and operational goals. Before concluding my comments, let me reiterate our thinking around the decision to temporarily postpone guidance. Based upon the recent communications with CDC, we think it's prudent to wait to collect more information about CDC's plans before commenting on our financial projections for 2016. We expect to continue the dialog with CDC in the near term, and as we have committed to do in the past, we expect to be able to provide information to you within the next 60 days as we better understand CDC's procurement plans for BioThrax. That concludes my prepared remarks and I'll now turn the call back over to the operator to begin the question-and-answer session. Operator?