Mice article male nonhuman Animals 127 mouse 126 controlled study 116 Male 111 animal experiment 108 priority journal 104 animal tissue 78 animal model 74 animal cell 58 female 46 Female 40 protein expression 35 Animalia 24 Mus 24 unclassified drug 24 Liver 23 Mice, Inbred C57BL 22 human 22 Humans 21 Mice, Inbred BALB C 21 drug effect 21 in vitro study 21 animal 20 in vivo study 20 Mice, Knockout 19 enzyme activity 18