Animals Humans animal 199 genetics human 199 metabolism 141 nonhuman 132 controlled study 108 mouse 84 Mice 78 priority journal 77 Article 68 animal cell 67 article 65 protein expression 58 unclassified drug 57 female 55 gene expression regulation 55 animal experiment 54 pathology 48 Female 47 animal model 47 male 46 drug effects 42 human cell 42 physiology 42 protein function 42 chemistry 41 Male 40 gene expression 32