Humans article female human Female 522 male 394 Male 390 controlled study 372 adult 355 priority journal 324 Adult 298 Middle Aged 213 aged 141 Aged 139 clinical article 134 human cell 132 Animals 121 Adolescent 116 Argentina 106 major clinical study 105 nonhuman 100 physiology 93 Child 85 metabolism 85 adolescent 84 protein expression 84 middle aged 76 Young Adult 71 child 71 Mice 69