Fig. 4From: Comparison of polymerization and structural behavior of microtubules in rat brain and sperm affected by the extremely low-frequency electromagnetic fieldANS fluorescence assay. a and b Fluorescence intensity of the tubulin-ANS complex was significantly difference in all experimental groups. The assigned letters of a, b, c, and d denote significant differences (P < 0.05) among the groups. The result is from 3 independent experiments. Values are expressed as mean ± SD, Tukey post hoc testBack to article page