human mouse priority journal nonhuman 237 Animals 212 controlled study 204 Mice 191 Humans 186 animal cell 178 article 171 human cell 148 animal experiment 129 protein expression 107 animal model 105 animal 104 unclassified drug 94 metabolism 84 Female 77 female 73 animal tissue 71 signal transduction 61 Article 60 male 59 cell proliferation 56 in vitro study 56 genetics 51 in vivo study 47 protein function 47 Cell Line, Tumor 45 Mice, Inbred BALB C 40