animal model female nonhuman 456 animal experiment 432 controlled study 424 article 358 Animals 346 Female 336 mouse 326 priority journal 314 Mice 256 animal tissue 256 animal cell 218 protein expression 140 male 132 rat 130 Mice, Inbred BALB C 128 animal 112 Rats 108 metabolism 98 unclassified drug 98 Humans 88 human 88 Male 84 Article 80 enzyme activity 70 Animalia 64 cell proliferation 64 signal transduction 64 Disease Models, Animal 56