AE	Adverse Event
CI	Cardiac Index
CPFE	Combined Pulmonary Fibrosis and Emphysema
CT	Computed Tomography
CTEPH	Chronic Thromboembolic Pulmonary Hypertension
DLCO	Diffusing Capacity for Carbon Monoxide
ERS	European Respiratory Society
ESC	European Society of Cardiology
FVC	Forced Vital Capacity
iTre	Inhaled Treprostinil
ILD	Interstitial Lung Disease
IPF	Idiopathic Pulmonary Fibrosis
IQR	Interquartile Range
MAP	Mean Arterial Pressure
mPAP	Mean Pulmonary Artery Pressure
NSIP	Nonspecific Interstitial Pneumonia
PAH	Pulmonary Arterial Hypertension
PAWP	Pulmonary Artery Wedge Pressure
PCWP	Pulmonary Capillary Wedge Pressure
PH	Pulmonary Hypertension
PH-ILD	Pulmonary Hypertension Associated with Interstitial Lung Disease
PVR	Pulmonary Vascular Resistance
QID	Four Times Daily
RAP	Right Atrial Pressure
RHC	Right Heart Catheterization
RT	Respiratory Therapist
RV	Right Ventricle
SD	Standard Deviation
SpO2	Peripheral Oxygen Saturation
WU	Wood Units