Late diagnosis of mucopolysaccharidosis type IVB and successful aortic valve replacement in a 60-year-old female patient
Keywords: MPS IVB; mucopolysaccharidosis type IVB; GAGs; glycosaminoglycans; β-gal; acid β-galactosidase; LAMP1; lysosomal-associated membrane protein 1; SMA; smooth muscle actin; AVAi; aortic valve area index; PG; pressure gradient; VICs; valvular interstitial c