Animals Male male article 1,009 nonhuman 938 animal 906 female 771 controlled study 768 Female 754 animal experiment 641 priority journal 633 animal tissue 435 physiology 429 mouse 352 Mice 344 metabolism 313 animal cell 295 Argentina 273 animal model 248 rat 248 Article 242 genetics 241 Rats 239 Animalia 185 protein expression 185 Humans 174 growth, development and aging 169 adult 168 human 166 unclassified drug 154