a series of five living patients with juvenile metachromatic leukodystrophy ( mld ) , ten first-degree relatives , and a number of controls were subjected to biochemical investigations including quantitative determination of arylsulphatase a ( asa ) and b ( asb ) activities in peripheral leukocytes and polyacrylamide disc gel elctrophoresis of arylsulphatases .
C0007804
arylsulphatase a
C0003940
arylsulphatases