animal experiment animal model article nonhuman 666 controlled study 601 Animals 528 priority journal 483 mouse 445 Mice 381 animal tissue 346 female 328 animal cell 300 Female 289 male 270 Male 235 protein expression 185 rat 184 Rats 161 Mice, Inbred BALB C 146 unclassified drug 136 Humans 114 enzyme activity 114 Animalia 105 human 99 in vivo study 92 cell proliferation 90 animal 86 drug effect 86 in vitro study 82 Disease Models, Animal 81