animal model cell proliferation nonhuman 98 priority journal animal experiment 94 controlled study 94 Animals 85 article 84 mouse 80 Mice 75 animal cell 75 animal tissue 66 protein expression 53 female 48 Female 42 human 39 Cell Proliferation 38 Humans 38 in vivo study 35 male 35 animal 33 metabolism 29 human cell 28 in vitro study 28 Mice, Inbred BALB C 26 drug effect 25 signal transduction 25 Male 24 unclassified drug 24 protein function 23