Animals Mice animal 122 controlled study mouse 122 physiology nonhuman 117 metabolism 91 priority journal 85 animal experiment 75 animal cell 66 article 66 animal tissue 58 Article 54 male 46 animal model 42 genetics 42 female 41 Humans 40 human 40 cytology 39 Male 36 protein expression 36 unclassified drug 36 Female 35 drug effect 35 signal transduction 28 Mice, Knockout 25 pathology 25 hippocampus 24