statistical comparisons between means of patient and control groups ( student 's t test ) showed a significant difference in serum beta-galactosidase and acid phosphatase between patients and controls ( serum beta-galactosidase : 36.5 +/- 22 nmol/h/ml in the scleroderma group versus 24 +/- 13 nmol/h/ml in the control group ;
C0016955
galactosidase
C0005220
beta-galactosidase