Animals Humans priority journal unclassified drug nonhuman 227 human 193 article 159 controlled study 158 animal cell 123 Mice 104 protein expression 92 mouse 91 human cell 84 animal 81 metabolism 63 protein function 60 animal experiment 55 signal transduction 52 Protein Binding 50 protein protein interaction 47 Female 42 animal model 41 in vitro study 39 Article 38 Cell Line 38 chemistry 38 Cercopithecus aethiops 34 Rats 34 Signal Transduction 34 protein localization 34