Mice mouse Animals 1,294 nonhuman 1,290 article 1,130 controlled study 1,004 priority journal 958 animal experiment 778 animal cell 766 animal 590 animal model 532 animal tissue 504 Female 496 female 474 Male 472 male 428 metabolism 398 protein expression 384 Humans 372 Mice, Inbred BALB C 362 human 348 unclassified drug 320 genetics 220 signal transduction 218 Article 216 Animalia 200 human cell 194 drug effect 188 cell proliferation 184 in vitro study 184