Animals Mice animal controlled study mouse 223 priority journal nonhuman 217 metabolism 167 animal experiment 145 animal cell 144 Article 118 animal tissue 114 article 103 animal model 99 genetics 98 female 91 physiology 85 male 83 protein expression 82 Female 77 human 73 Humans 71 unclassified drug 66 Male 65 drug effect 60 cytology 57 signal transduction 56 pathology 52 drug effects 51 in vitro study 49