Animals animal cell human human cell nonhuman 236 Humans 211 controlled study 202 article 177 priority journal 162 Mice 144 mouse 139 unclassified drug 117 protein expression 105 animal 87 animal experiment 79 metabolism 75 animal model 67 Cell Line 63 female 61 signal transduction 59 cell proliferation 51 Female 50 Cercopithecus aethiops 49 Article 46 Cell Line, Tumor 45 male 45 Male 42 Signal Transduction 42 in vitro study 42 protein function 42