Animalia article controlled study nonhuman 463 Animals 333 priority journal 290 animal cell 238 animal experiment 224 animal tissue 181 female 157 Female 150 rat 138 male 135 mouse 133 Mice 130 Male 127 Rats 123 animal model 100 enzyme activity 87 unclassified drug 83 Rats, Sprague-Dawley 74 protein expression 71 Humans 63 Mice, Inbred BALB C 52 signal transduction 50 Animal 48 cell proliferation 47 Support, Non-U.S. Gov't 46 animal 43 Mus 40