Operator
Good morning, and welcome to the United Therapeutics Corporation Fourth Quarter 2020 Earnings Call. My name is Kenzie, and I will be your conference operator today. [Operator Instructions]
I will now turn the conference call over to Mr. Dewey Steadman, Head of Investor Relations at United Therapeutics.
Dewey Steadman
Head of Investor Relations
Good morning. It s my pleasure to welcome you to the United Therapeutics Corporation Fourth Quarter 2020 Earnings Call. Accompanying me on today s call are Dr. Martine Rothblatt, our Chairman and Chief Executive Officer; Mr. Michael Benkowitz, our President and Chief Operating Officer; Mr. James Edgemond, our Chief Financial Officer and Treasurer; and Dr. Leigh Peterson, Vice President of Product Development. Remarks today will include forward-looking statements representing our expectations or beliefs regarding future events. These statements involve risks and uncertainties that may cause actual results to differ materially.