Female female human Humans 818 Male 652 male 642 article 628 adult 550 controlled study 544 priority journal 458 Adult 454 Middle Aged 292 Animals 224 metabolism 204 aged 192 Aged 186 Adolescent 184 human cell 184 Article 182 major clinical study 182 nonhuman 182 Argentina 178 animal 174 physiology 172 clinical article 170 adolescent 156 middle aged 144 protein expression 144 Child 138 genetics 136