Medicine
Magnetic resonance imaging
Natural history
Brain size
Neuroimaging
Cognitive decline
Internal medicine
Mucopolysaccharidosis type II
Heparan sulfate
Atrophy
Cognition
Cerebrospinal fluid
White matter
Pediatrics
Gastroenterology
Pathology
Disease
Dementia
Radiology
Psychiatry
Heparin
Enzyme replacement therapy
