nonhuman Animals 214 cell differentiation 206 priority journal 206 controlled study 182 article 176 animal cell 170 mouse 128 Cell Differentiation 126 Mice 112 protein expression 100 unclassified drug 92 human 76 Female 74 animal experiment 74 cell proliferation 72 animal 70 signal transduction 70 Humans 66 animal tissue 60 female 60 Article 58 metabolism 58 rat 56 Rats 54 embryo 52 messenger RNA 52 animal model 50 protein function 50 gene expression 48