Adult Male article human 376 Humans 341 male 331 adult 326 Female 321 female 289 controlled study 211 priority journal 204 Middle Aged 194 Adolescent 115 Aged 113 aged 101 major clinical study 94 clinical article 93 adolescent 78 Argentina 73 Young Adult 73 middle aged 68 Child 66 physiology 57 child 55 human cell 55 Animals 45 normal human 43 human experiment 41 Child, Preschool 38 Human 37