Lifestyle Behaviours and Plasma Vitamin C and -Carotene Levels from the ELAN Population (Liège, Belgium)
Figure 1
Plasma vitamin C and β-carotene distribution in the whole ELAN cohort () with respect to usual values and the critical cutoff values of 6 mg/L (34.2 μM) for vitamin C and 0.22 mg/L (0.4 μM) for β-carotene. Usual (or reference) values were established on a population of 128 healthy volunteers and published earlier [31–33].
