Treprostinil Is Associated With Early and Sustained Improvement in Group 3 Pulmonary Hypertension and Right Ventricular Function in Children. - Parvathaneni, Kaushik; Kochanski, Justin J.; Tandel, Megha D.; Liu, Esther; Arunamata, Alisa; Feinstein, Jeffrey A.; Hopper, Rachel K. (Pulmonary Circulation, 2026)