Operator Ladies and gentlemen, thank you for standing by, and welcome to the Adaptive Biotechnologies fourth quarter financial results conference call. [Operator instructions] I would now like to hand the conference over to your speaker today, Ms. Karina Calzadilla. Thank you. Please go ahead. Karina Calzadilla Thank you, Jeff, and good afternoon, everyone. I would like to welcome you to Adaptive Biotechnologies fourth quarter and full-year 2020 earnings conference call. Earlier today, we issued a press release reporting Adaptive financial results for the fourth quarter and full year of 2020. The press release is available at adaptivebiotech.com. We are conducting a live webcast of this call and will be referencing to a slide presentation that has been posted to the Investors section in our corporate website. During the call, management will make projections and other forward-looking statements within the meaning of federal securities laws regarding future events and the future financial performance of the company. These are statements reflect management's current perspective of the business as of today. Actual results may differ materially from today's forward-looking statements, depending on a number of factors, which are set forth in our public filings with the SEC and listed in this presentation.