Female Male human female 639 male 636 Humans 634 article 485 adult 475 Adult 427 controlled study 387 priority journal 360 Middle Aged 286 Aged 186 Adolescent 182 major clinical study 179 aged 176 Argentina 170 clinical article 149 adolescent 143 Child 134 Young Adult 131 Animals 130 middle aged 130 Article 123 child 122 physiology 120 nonhuman 97 Child, Preschool 88 human cell 86 animal 83