article controlled study human Humans 992 priority journal 860 human cell 742 female 534 Female 466 male 452 nonhuman 448 Animals 410 adult 406 Male 384 unclassified drug 340 protein expression 298 Adult 274 animal cell 270 Mice 216 clinical article 216 mouse 214 metabolism 194 signal transduction 192 Middle Aged 190 cell proliferation 178 aged 158 Cell Line, Tumor 154 major clinical study 148 Cell Line 146 apoptosis 140 animal experiment 138