Article Male male 343 controlled study 275 nonhuman 246 Animals 242 animal 242 female 219 Female 205 priority journal 187 adult 181 animal experiment 168 metabolism 154 human 153 physiology 152 Humans 151 genetics 102 animal tissue 100 drug effects 94 mouse 92 animal cell 80 Mice 74 Adult 67 protein expression 62 unclassified drug 62 middle aged 58 Argentina 56 Middle Aged 54 animal model 54 pathology 52