Animals Female Male Mice mouse 144 nonhuman 142 article 122 female 122 priority journal 120 male 118 controlled study 110 animal experiment 98 animal tissue 70 protein expression 56 animal model 54 animal 48 animal cell 48 Mice, Knockout 44 Humans 42 Mice, Inbred C57BL 40 human 36 adult 30 metabolism 30 Animalia 28 unclassified drug 28 Mus 26 Mice, Inbred BALB C 24 Receptors, Dopamine D2 24 genetics 24 Article 22