in vitro study mouse nonhuman 206 controlled study 181 Mice 177 Animals 167 animal experiment 143 animal cell 140 article 140 priority journal 136 animal model 113 in vivo study 112 animal 98 human 86 animal tissue 85 female 82 male 82 Female 77 Article 70 Humans 68 unclassified drug 65 protein expression 63 human cell 58 metabolism 58 Male 54 Mice, Inbred BALB C 54 cell proliferation 54 Cell Proliferation 38 genetics 36 apoptosis 35