Humans male human 773 Male 763 female 614 Female 581 article 564 adult 506 controlled study 469 priority journal 402 Adult 398 Middle Aged 290 Animals 199 aged 179 nonhuman 178 Aged 175 Argentina 171 major clinical study 162 Article 159 Adolescent 152 physiology 150 middle aged 148 human cell 145 clinical article 139 adolescent 130 Young Adult 129 animal 115 Child 113 metabolism 109 child 105