*2.2. Tissue Fixation*

Epididymides were fixed using Modified Davidson's fluid (12% formaldehyde, 15% ethanol, 5% glacial acetic acid) for 8 h at 4 ◦C [55]. Tissues were then washed in 70% ethanol, dehydrated, embedded in paraffin and sectioned at 4 μm at the Goodman Cancer Research Center Histology Facility (McGill University, Montreal, QC, Canada).
