Adult Male adult female human male 357 Female 355 Humans 332 article 263 controlled study 216 Middle Aged 193 priority journal 174 Adolescent 122 aged 109 major clinical study 107 middle aged 104 Young Adult 103 Aged 101 adolescent 98 clinical article 80 physiology 79 Argentina 68 Article 67 Child 62 child 61 human experiment 57 young adult 54 normal human 47 genetics 39 Child, Preschool 34