Male 44 Sperm Capacitation priority journal 40 Spermatozoa 38 spermatozoon capacitation 36 article 34 controlled study 34 male 32 nonhuman 28 spermatozoon motility 28 Animals 24 animal cell 24 protein phosphorylation 24 Female 22 Humans 22 acrosome reaction 22 human 22 spermatozoon 22 Acrosome Reaction 18 Sperm Motility 18 Sperm-Ovum Interactions 18 fertilization 16 human cell 16 Epididymis 12 Phosphorylation 12 female 12 oocyte 12 semen analysis 12 unclassified drug 12 zona pellucida 12