What We Do United Therapeutics Corporation focuses on the strength of a balanced, value-creating biotechnology model. We are confident in our future thanks to our fundamental attributes, namely our commitment to quality and innovation, the power of our brands, our entrepreneurial culture and our bioinformatics leadership. We also believe that our determination to be responsible citizens - having a positive impact on patients, the environment and society - will sustain our success in the long term.   We currently have five approved products on the market and a long-term mission of providing an unlimited supply of transplantable organs for those who need them.   Our company was founded by an entrepreneur whose daughter was diagnosed with