Animals nonhuman 594 article 560 controlled study 488 priority journal 444 animal cell 430 Mice 336 mouse 304 animal 268 Cells, Cultured 264 cell culture 226 Female 222 Humans 218 animal experiment 210 female 210 human 200 metabolism 192 protein expression 192 unclassified drug 186 Rats 178 rat 162 animal tissue 156 animal model 136 cell proliferation 130 in vitro study 120 human cell 116 signal transduction 116 Animalia 106 Tumor Cells, Cultured 100 Article 98