Humans controlled study human mouse Animals 238 nonhuman 235 Mice 213 animal cell 163 human cell 156 priority journal 156 article 152 animal experiment 146 animal 142 animal model 126 metabolism 126 protein expression 113 unclassified drug 110 Female 93 female 90 Article 86 animal tissue 73 genetics 73 Cell Line, Tumor 68 male 63 cell proliferation 62 in vitro study 62 Male 59 pathology 59 in vivo study 57 signal transduction 52