Article Humans human 73 unclassified drug controlled study 60 metabolism 52 nonhuman 42 human cell 40 Animals 38 animal 38 priority journal 36 chemistry 31 drug effects 31 protein expression 24 animal cell 21 in vitro study 20 mouse 20 genetics 19 animal experiment 17 Mice 16 female 16 tumor cell line 16 Cell Line, Tumor 15 male 15 Female 14 Male 14 HEK293 Cells 13 HEK293 cell line 13 pathology 13 protein function 13