Adult Male human 497 Humans 450 Female 438 male 433 adult 428 female 387 article 378 controlled study 265 Middle Aged 246 priority journal 246 Adolescent 151 Aged 140 major clinical study 128 aged 125 Young Adult 123 middle aged 112 clinical article 111 adolescent 108 physiology 93 Argentina 91 Child 86 child 73 Article 67 human cell 67 human experiment 65 Animals 59 Child, Preschool 58 Human 58