animal model controlled study mouse nonhuman 597 animal experiment 556 Animals 468 Mice 458 article 439 priority journal 423 animal tissue 339 animal cell 306 female 296 male 256 Female 226 Male 189 protein expression 189 animal 171 human 160 Humans 159 Mice, Inbred BALB C 155 unclassified drug 154 Article 144 metabolism 140 in vivo study 117 in vitro study 108 human cell 105 cell proliferation 104 Mice, Inbred C57BL 91 enzyme activity 91 signal transduction 90