the presence of an intrinsic inhibitor of ace in blood of approximately 25 % of sera submitted for serum ace assay in the diagnosis and evaluation of patients with sarcoidosis , and the common use of ace inhibitors ( captopril and enalapril ) in the treatment of hypertension and congestive heart failure , stimulated these studies to compare the effects of the intrinsic and medicinal inhibitors upon serum ace activity .
C0006938
captopril
C0018802
congestive heart failure