Saudi experience in the management of pulmonary arterial hypertension; the outcome of PAH therapy with the exclusion of chronic parenteral prostacyclin oleh Majdy Idrees, Khalid Alnajashi, Jasim Abdulhameed, Atika Khan, Enas Batubara, Abdelmajeed Alotay, Amal Fayed, Saleh Aldammas, Moaad Alseif, Husam Alawwad, Yahya Abusabaa, Mashael Almobrad, Tarek Kashour, The Registry Taskforce SAPH