article nonhuman Animals 268 controlled study 238 priority journal 234 animal tissue 208 Immunohistochemistry 196 immunohistochemistry 194 animal experiment 180 protein expression 146 animal cell 144 mouse 136 Mice 132 male 128 female 124 Female 120 Male 118 animal model 106 rat 82 Rats 76 Western blotting 62 Humans 56 protein localization 56 Blotting, Western 54 animal 52 human 52 messenger RNA 52 immunoreactivity 50 unclassified drug 46 cell proliferation 44