Operator
Operator
Good day, ladies and gentlemen, and welcome to the Vertex Pharmaceuticals Incorporated Fourth Quarter 2012 Earnings and Financial Results Conference Call. At this time all participants are in a listen only mode. Later we will conduct a question and answer session and instructions will be given at that time. (Operator Instructions). As a reminder, this call may be recorded. I would now like introduce your host for today's conference, Mr. Michael Partridge. You may begin.