Thank you, operator and good afternoon. I'd like to thank everyone for joining us today. With me on the call are Obi Greenman, Cerus' President and Chief Executive Officer; Vivek Jayaraman, our Chief Commercial Officer; Kevin Green, Cerus' Chief Financial Officer; and Carol Moore, our Senior Vice President of Regularly Affairs and Quality. Cerus issued a press release today announcing our financial results for the fourth quarter and year ended December 31st, 2017 and also describing the company's recent business highlights. You can access the copy of this announcement on the company website at www.cerus.com. I'd like to remind you that some of the statements we will make on this call relate to future events and future performance, rather than historical facts, and are forward-looking statements. Examples of forward-looking statements include statements related to our 2018 product revenue guidance, gross margins, operating expenses, cash burn, and sufficiency of cash, future product sales, mix and volume, future regulatory related events, including the issuance of a final guidance document, clinical trials and other product development activities, including respect to cryoprecipitate, activities with respect to our red cell program, our commercial goals and initiatives, including new contracts, customer activity under existing contracts and hospital implementation, the potential approval of our red cell product in Europe and the U.S. and commercial launch thereof, and the timing of the foregoing events and activities. These forward-looking events -- these forward-looking events statements involve risks and uncertainties and could cause actual events and performance and results to differ materially. These risks and uncertainties identified and described in today's press release and under risk factors in our Form 10-K for the year ended December 31st, 2017 that we expect to file shortly. We undertake no duty or obligation to update any forward-looking statements we make today. This call will be archived temporarily on our website and will not be updated during that time. On today's call, we'll begin with opening remarks from Obi, followed by Carol, who will provide an update on our clinical programs, then Kevin will review Q4 and full year financial results, and finally, Obi will conclude with closing remarks. And now, it's my pleasure to introduce Obi Greenman, Cerus' President and Chief Executive Officer.