ABG	Arterial blood gases
BAL	Bronchoalveolar lavage
BMI	Body mass index
CT	Computed tomography
DLCO	Diffusion capacity for carbon monoxide
EPAP	Expiratory positive airway pressure
ERT	Enzyme replacement therapy
FEV1	Forced expiratory volume in the first second
FVC	Forced vital capacity
GAA	Acid alpha-glucosidase
GAG	Glycosaminoglycans
Gb3	Globotriaosylceramide
GBA	Acid beta-glucosidase or glucosylceramidase
GSD II	Glycogen storage disease type II
HRCT	High-resolution computed tomography
HSCT	Hematopietic stem-cell transplantation
IPAP	Inspiratory positive airway pressure
LDL	Low-density lipoprotein
LOPD	Late-onset Pompe disease
LSD	Lysosomal storage diseases
Lyso-Gb3	Globotriaosylsphingosine
MEP	Maximum expiratory pressure
MIP	Maximum inspiratory pressure
ML	Mucolipidosis
MPS	Mucopolysaccharidosis
MRI	Magnetic resonance imaging
MV	Mechanical ventilation
MVV	Maximum voluntary ventilation
NIV	Non-invasive ventilation
NPC	Niemann-Pick disease type C
OSA	Obstructive sleep apnea
PaCO2	Partial pressure of carbon dioxide in arterial blood
PCF	Peak cough flow
PFTs	Pulmonary function tests
PSG	Polysomnography
REM	Rapid eye movement
SDB	Sleep-disordered breathing
SNIP	Sniff nasal inspiratory pressure
SRT	Substrate reduction therapy
VC	Vital capacity