Female controlled study female 70 metabolism unclassified drug Animals 58 animal 58 nonhuman 58 animal experiment 45 Article 44 human 41 Humans 39 priority journal 37 mouse 34 protein expression 34 Mice 32 animal cell 31 animal model 31 animal tissue 31 pathology 27 Male 24 genetics 24 male 24 human cell 23 adult 22 article 22 drug effects 22 cytology 20 signal transduction 19 in vitro study 17