animal experiment 129 animal model controlled study in vitro study nonhuman 129 mouse 108 Animals 106 priority journal 88 Mice 85 animal cell 80 in vivo study 78 article 77 animal tissue 71 human 65 male 61 animal 57 female 55 Article 52 Female 51 Humans 49 human cell 49 protein expression 49 unclassified drug 47 metabolism 43 Male 38 cell proliferation 38 Cell Proliferation 28 Mice, Inbred BALB C 28 genetics 26 Mus 25