animal model controlled study human nonhuman animal experiment 162 mouse 160 Animals 146 Humans 136 Mice 122 priority journal 115 human cell 111 animal cell 107 article 100 animal tissue 92 protein expression 91 animal 84 female 81 unclassified drug 76 Female 71 male 71 metabolism 70 in vivo study 68 Article 66 in vitro study 65 cell proliferation 53 Male 50 genetics 49 pathology 49 Cell Line, Tumor 46 human tissue 36