Article female controlled study 397 nonhuman 350 Female 349 male 307 Animals 292 animal 288 priority journal 263 adult 253 human 245 Male 219 metabolism 204 Humans 199 animal experiment 188 animal tissue 148 physiology 138 animal cell 126 genetics 118 mouse 116 protein expression 100 drug effects 98 unclassified drug 88 Mice 84 Argentina 82 animal model 80 Adult 79 in vitro study 72 human cell 64 major clinical study 62