Article controlled study female nonhuman Animals 226 animal 224 Female 186 animal experiment 170 male 160 priority journal 158 metabolism 138 animal tissue 136 adult 120 animal cell 118 mouse 108 Male 106 physiology 82 animal model 80 Mice 76 human 76 genetics 72 drug effects 70 unclassified drug 70 protein expression 68 Humans 62 in vitro study 48 in vivo study 44 pathology 42 Argentina 38 gene expression 34