Article animal tissue male nonhuman priority journal controlled study 94 Animals 80 animal 78 animal experiment 76 metabolism 62 mouse 62 Male 60 female 52 animal cell 46 physiology 44 adult 40 Mice 38 animal model 36 drug effects 30 genetics 28 Female 26 gene expression 20 drug effect 18 in vitro study 18 unclassified drug 18 C57BL mouse 16 Mice, Inbred C57BL 16 Mice, Knockout 16 cytology 16 brain 14