animal experiment article mouse nonhuman 674 Mice 565 controlled study 564 Animals 523 priority journal 504 animal model 445 animal tissue 322 female 314 animal cell 310 Female 279 male 270 Male 238 Mice, Inbred BALB C 193 protein expression 187 unclassified drug 141 Humans 128 human 116 Mus 108 animal 108 Animalia 105 enzyme activity 104 Mice, Inbred C57BL 95 signal transduction 92 in vivo study 90 cell proliferation 88 drug effect 83 in vitro study 83