Risk stratification and medical therapy of pulmonary arterial hypertension

University of Bologna, Harvard University, Massachusetts General Hospital, Mayo Clinic in Arizona, Heidelberg University, University Hospital Heidelberg, Fu Wai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Federal Almazov North-West Medical Research Centre, Tufts Medical Center, Tufts University, Universidad La Salle, Cornell University, Methodist Hospital, International University of Health and Welfare, University of Michigan–Ann Arbor