to assess whether hepatic peptidyl prolyl hydroxylase ( pph ) activity could serve as a practical quantitative indicator of hepatic fibrosis or aid in the categorization , diagnosis or prognosis of hepatobiliary disorders in infancy and childhood , the activity of this enzyme has been determined prospectively by a tritium release method in 97 biopsies from 94 infants and children with the following conditions : acute hepatitis of infancy , 10 patients ;
C0021270
infants
C0008059
children