Male human cell human 193 Humans 163 controlled study 144 article 139 male 134 priority journal 130 Female 90 female 74 nonhuman 68 Adult 67 Animals 65 adult 61 protein expression 58 animal cell 46 Mice 42 unclassified drug 42 Middle Aged 41 animal experiment 41 in vitro study 41 metabolism 39 Spermatozoa 38 mouse 38 Aged 36 clinical article 35 Human 34 cell proliferation 34 Article 32 Cell Line, Tumor 32