ACCP	American College of Chest Physicians
ATS/JRS/ALAT	American Thoracic Society/Japanese Respiratory Society/Asociación Latinoamericana del Tórax
BAL	bronchoalveolar lavage
DLCO	diffusion capacity of lung for carbon monoxide
f-HP	fibrotic hypersensitivity pneumonitis
f-ILD	fibrotic interstitial lung disease
FEV1	forced expiratory volume in the first second
FVC	forced vital capacity
HP	hypersensitivity pneumonitis
ILD	interstitial lung disease
IPF	idiopathic pulmonary fibrosis
MDD	multidisciplinary team discussion
NSIP	nonspecific interstitial pneumonia
SSA	steroid sparing agent
TLC	total lung capacity
UIP	usual interstitial pneumonia