MPS	Mucopolysaccharidosis
ARSB	Arylsulfatase B
HGMD	Human Gene Mutation Database
ENT	Ear, Nose and Throat
GAG	Glycosaminoglycans
ERT	Enzyme Replacement Therapy
BMI	Body Mass Index
FVC	Forced Vital Capacity
FEV1	Forced Expiratory Volume in 1 s
CT	Computerised Tomography
3D	Three Dimensions
LMA	Laryngeal Mask Airway
CPAP	Continuous Positive Airway Pressure