Animals animal tissue controlled study human nonhuman 110 Humans 98 mouse 83 Mice 77 priority journal 77 animal experiment 76 animal model 72 article 70 animal cell 65 animal 57 human cell 54 Female 53 female 52 protein expression 50 metabolism 45 male 40 unclassified drug 39 Article 34 cell proliferation 32 Cell Line, Tumor 31 genetics 30 in vitro study 30 Male 29 in vivo study 29 pathology 28 human tissue 26