The study of risk in pulmonary arterial hypertension.
Rubin LJ, Simonneau G, Badesch D, Gali? N, Humbert M, Keogh A, Massaro J, Matucci Cerinic M, Sitbon O, Kymes S. The study of risk in pulmonary arterial hypertension. Eur Respir Rev. 2012 Sep 01; 21(125):234-8.