title: Prostacyclin and primary pulmonary hypertension.
authors.forename: S
authors.initials: S
authors.lastname: Rich
mesh_terms: D003362:Cost-Benefit Analysis; D011464:Epoprostenol / Q000191:economics / Q000627:therapeutic use*; D006801:Humans; D006976:Hypertension, Pulmonary / Q000188:drug therapy*
chemical_list: D011464:Epoprostenol