the results showed that the vitamin b ( 12 ) -deficient livers were more severely depleted of tetrahydrofolates and formyltetrahydrofolates than of methyltetrahydrofolates and that as the deficiency developed they were more severely depleted of the higher polyglutamates than of the monoglutamate within each of these classes .
C0039669
tetrahydrofolates
C0016598
formyltetrahydrofolates