animal experiment controlled study mouse nonhuman 576 priority journal Animals 459 Mice 447 article 436 animal model 386 animal tissue 304 animal cell 288 male 257 female 255 Female 204 Male 198 protein expression 192 animal 169 Mice, Inbred BALB C 142 unclassified drug 139 Article 138 metabolism 138 Humans 127 human 124 Mice, Inbred C57BL 112 signal transduction 93 enzyme activity 92 in vivo study 91 cell proliferation 88 in vitro study 87 human cell 81