Adult Humans Male human male 392 adult 389 Female 384 female 354 article 339 controlled study 249 Middle Aged 242 priority journal 224 Adolescent 128 Young Adult 121 middle aged 112 Aged 111 major clinical study 110 aged 109 clinical article 97 adolescent 93 Argentina 87 physiology 87 Article 67 Child 67 child 64 human experiment 59 Animals 57 human cell 55 young adult 54 nonhuman 46