Animals Female animal 182 controlled study female 182 metabolism nonhuman animal experiment 127 priority journal 117 Article 108 animal cell 102 mouse 102 animal tissue 100 Mice 92 animal model 75 article 72 genetics 71 protein expression 69 male 61 physiology 61 Male 59 unclassified drug 58 drug effects 55 human 55 pathology 55 Humans 53 adult 49 cytology 42 in vivo study 39 in vitro study 38