Animals controlled study metabolism mouse priority journal animal 199 nonhuman 195 Mice 169 animal cell 132 animal experiment 132 Article 116 animal tissue 108 genetics 91 animal model 90 article 81 physiology 80 protein expression 80 female 75 male 75 human 71 Humans 69 Female 67 unclassified drug 64 signal transduction 62 Male 61 drug effects 57 cytology 54 gene expression 44 C57BL mouse 43 Mice, Inbred C57BL 43