UTHR. United Therapeutics Announces Collaboration With Ascendis Pharma To Develop Self-Injectable Treprostinil For Pulmonary Arterial Hypertension http://finance.yahoo.com/news/united-therapeutics-announces-collaboration-ascendis-100000890.html stockcharts.com/c-sc/sc?s=UTHR&p=W&yr=1&mn=0&dy=0&i=t42769729980&r=1348139186601