animal cell human mouse nonhuman 245 controlled study 211 Animals 202 Mice 193 Humans 181 priority journal 178 human cell 174 article 169 animal experiment 116 protein expression 112 animal 111 unclassified drug 106 animal model 104 metabolism 97 female 86 Female 75 Article 68 signal transduction 66 male 64 in vitro study 62 animal tissue 58 cell proliferation 57 genetics 56 protein function 54 Cell Line, Tumor 51 in vivo study 47 Mice, Inbred BALB C 41