Serum Thymidine Kinase Activity: Analytical Performance, Age-Related Reference Ranges and Validation in Chronic Lymphocytic Leukemia
Figure 2
Age-related frequency distributions of serum thymidine kinase activity in age groups 18–35 years (A), 35–60 years (B) and 60–86 years (C).
Box and whisker plots showing significant difference of serum TK activity in the studied age groups (D).