Female Humans 276 Middle Aged adult human female 259 Male 250 male 236 Adult 222 article 208 controlled study 180 priority journal 165 aged 142 Aged 138 middle aged 122 major clinical study 101 clinical article 87 Adolescent 75 Argentina 66 adolescent 59 Article 48 Young Adult 46 Child 39 child 38 human tissue 35 Animals 34 genetics 32 Aged, 80 and over 31 nonhuman 31 Severity of Illness Index 26