using human umbilical cord endothelial cell cultures and a modified 3htdr uptake technique , endothelial cell cytotoxic activity ( eca ) has been demonstrated in sera of 95/130 patients with progressive systemic sclerosis ( pss ) , 14/20 patients with raynaud syndrome ( rs ) , 52/153 rheumatoid arthritis ( ra ) , and 47/113 systemic lupus erythematosus ( sle ) sera .
C0014257
endothelial
C0225336
endothelial cell