Figure 2

Kruskal–Wallis test results for CSF 5-HAA (± s.e.) in the three consecutive months with highest 5-HIAA concentrations (March–May=1) vs the other months of the year (=0).
Kruskal–Wallis test results for CSF 5-HAA (± s.e.) in the three consecutive months with highest 5-HIAA concentrations (March–May=1) vs the other months of the year (=0).