cell differentiation priority journal 95 controlled study 92 nonhuman 90 Animals 83 article 80 Cell Differentiation 73 human 69 animal cell 55 Humans 53 protein expression 50 Mice 46 mouse 45 human cell 42 metabolism 42 animal 40 signal transduction 40 unclassified drug 38 cell proliferation 37 Article 35 cytology 30 Female 28 Signal Transduction 25 cell culture 25 female 24 gene expression 23 physiology 22 genetics 20 protein function 20 apoptosis 19