Humans animal experiment human mouse nonhuman Animals 149 controlled study 146 Mice 131 animal model 120 priority journal 103 animal 93 human cell 93 article 91 animal cell 89 metabolism 77 protein expression 76 Female 70 unclassified drug 68 female 67 animal tissue 58 Article 56 in vivo study 52 male 52 genetics 50 in vitro study 49 pathology 49 Male 47 cell proliferation 43 Cell Line, Tumor 42 Mice, Inbred BALB C 37