Animals controlled study female human unclassified drug nonhuman 57 Humans 51 Female 49 Mice 45 mouse 45 animal experiment 43 animal 37 animal model 37 animal cell 36 metabolism 35 article 33 human cell 31 priority journal 28 protein expression 28 in vivo study 23 animal tissue 22 Article 20 Male 20 in vitro study 19 pathology 19 adult 16 male 16 Cells, Cultured 15 cytology 14 drug effects 14