these patients comprised nine with gm1-gangliosidosis , 12 with gm2-gangliosidosis ( 11 of tay-sachs ' disease and one of sandhoff 's disease ) , 18 with trihexosylceramide lipidosis ( fabry 's disease ) , eight with beta-galactosylceramide lipidosis ( krabbe 's disease ) , 14 with beta-glucosylceramide lipidosis ( gaucher 's disease ) , two with sphingomyelin lipidosis ( niemann-pick disease ) , 13 with metachromatic leucodystrophy and five with alpha-mannosidosis .
C0268274
gm2-gangliosidosis
C0036161
sandhoff 's disease