adult article human female 514 male 505 Humans 483 Adult 424 Male 404 Female 393 controlled study 391 priority journal 379 Middle Aged 260 aged 219 clinical article 215 Aged 171 major clinical study 160 Adolescent 133 adolescent 130 Argentina 105 human cell 94 human experiment 88 middle aged 84 child 83 normal human 83 Young Adult 81 physiology 80 nonhuman 74 case report 73 Child 72 human tissue 66