id	keyword
ct-12575	sperm
ct-12575	acrosome
ct-12575	stain
ct-12575	dna
ct-12575	microscopy
ct-12575	semen
ct-12575	staining
ct-12575	evaluation
ct-12575	head
ct-12575	chromatin
ct-12575	cells
ct-12575	morphology
ct-12575	use
ct-12575	midpiece
ct-12575	spermatozoa
ct-12575	human
ct-12575	analysis
ct-12575	reaction
ct-12575	flow
ct-12575	defects