uroporphyrinogen decarboxylase levels were measured in haemolysed whole blood or fibroblasts from 3 unrelated patients with hepatoerythropoietic porphyria ( hep ) and in 4 unrelated patients with familial porphyria cutanea tarda , a condition in which the enzyme is defective .
C0042085
uroporphyrinogen decarboxylase
C0162569
hepatoerythropoietic porphyria