Mice controlled study 292 human Animals 288 nonhuman 262 Humans 256 mouse 254 article 216 human cell 198 priority journal 196 animal cell 188 animal experiment 146 animal 136 protein expression 136 animal model 126 unclassified drug 124 metabolism 118 Female 106 female 102 animal tissue 80 Cell Line, Tumor 74 cell proliferation 74 male 72 Article 70 Male 70 in vitro study 70 genetics 68 signal transduction 68 in vivo study 60 protein function 56