Reference Values:
0-2 months: 40-140 mcg/dL
3-6 months: 40-160 mcg/dL
7-9 months: 40-170 mcg/dL
10-12 months: 80-170 mcg/dL
13 months-10 years: 80-180 mcg/dL
11-17 years: 75-145 mcg/dL
Males:
> or =18 years: 73-129 mcg/dL
Females:
> or =18 years: 77-206 mcg/dL