the concentrations of total ascorbic acid , reduced and oxidized forms of ascorbic acid , the esr intensity of ascorbate radical , and the ratio of oxidized form of ascorbic acid to total ascorbic acid ( dasa/asa ) were estimated on 217 healthy controls , whose ages ranged from 12 to 96 years , in order to examine influences of sex and age .
C0011177
oxidized
C0003968
ascorbic acid