Human semen samples may show sample to sample (inter-sample) vari­ability of sperm parameters due to multi-factorial nature of sperm pro­ duction and transport through male reproductive tract. We reviewed charts of I 09 men referred to the Sperm Bank at Cleveland Clinic Foundation. We compared inter-sample variability of pre-freeze and post-thaw (24hours after freezing) sperm motility and motion kinetics [average ... Read more