article female Female 751 controlled study 593 male 561 priority journal 543 nonhuman 516 Animals 515 Male 438 human 408 animal experiment 342 Humans 298 adult 259 animal 246 animal cell 220 animal tissue 218 rat 196 mouse 191 Rats 171 Mice 167 Adult 165 animal model 165 Argentina 144 physiology 132 protein expression 130 Animalia 122 metabolism 114 clinical article 107 aged 105 Middle Aged 103