Fig. 4

Comparison a) The mean sperm DNA fragmentation percentage (TUNEL positivity%, P = 0.0401) and b) The mean sperm protamine deficiency (CMA3 positivity%, P = 0.0001), before and after letrozole treatment
Comparison a) The mean sperm DNA fragmentation percentage (TUNEL positivity%, P = 0.0401) and b) The mean sperm protamine deficiency (CMA3 positivity%, P = 0.0001), before and after letrozole treatment