fPS	Fibrotic pulmonary sarcoidosis
IL	Interleukin
Th	T helper
M1	A proinflammatory subtype of macrophages
M2	Alternatively activated macrophages
TNF-α	Tumor necrosis factor-α
TGF-β	Transforming growth factor-β
IFN-γ	Interferon-γ
CCL 18	CC chemokine ligand 18
CT	Computed tomography
HRCT	High-resolution computed tomography
PFT	Pulmonary function test
TLCO	Lung transfer factor for carbon monoxide
6-MWT	Six-minute walk test
FEV1	forced expiratory volume in 1 s
FVC	Forced vital capacity
FAS	Fatigue Assessment Scale
PH	Pulmonary hypertension
BAL	Bronchoalveolar lavage
BALF	Bronchoalveolar lavage fluid
CPI	Composite Physiologic Index
DSP	Distance-saturation product
ILD	Interstitial lung disease
PF-ILD	Progressive fibrosis- interstitial lung disease
UIP	Usual interstitial pneumonia
IPF	Idiopathic pulmonary fibrosis
ERS	European Respiratory Society
BTS	British Thoracic Society
CTD	Connective tissue disease
COPD	Chronic obstructive pulmonary disease
DAD	Diffuse alveolar damage
WHO	World Health Organisation
NYHA	New York Heart Association
CPA	Chronic Pulmonary Aspergillosis
CSIPF	combined sarcoidosis and idiopathic pulmonary fibrosis
PMNs	Polymorphonuclear neutrophils
PDGF	Platelet-derived growth factor
bFGF	Basic fibroblast growth factor
VEGF	Vascular endothelial growth factor
PR	Pulmonary Rehabilitation
NGS	next-generation sequencing
WES	Whole-exome sequencing
AI	Artificial Intelligence