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Reference: Benza RL, et al. Chest. 2019;156(2):323-337

APAH=associated pulmonary arterial hypertension; BNP=B-type natriuretic peptide; BPM=beats per minute; CTD=connective tissue disease;DL_CO=diffusing capacity of the lung for carbon monoxide; eGFR=estimated glomerular filtration rate; FPAH=familial pulmonary atrial hypertension; HR=heart rate; mRAP=mean right atrial pressure; NT-proBNP=N-terminal pro-B-type natriuretic peptide; NYHA=New York Heart Association; PAH=pulmonary arterial hypertension; PoPH=portopulmonary hypertension; PVR=pulmonary vascular resistance; REVEAL=Registry to EValuate Early And Long-term pulmonary arterial hypertension disease management; SBP=systolic blood pressure; WHO=World Health Organization