Female Humans 162 Middle Aged female human 162 priority journal adult 150 Male 144 male 140 Adult 123 article 122 controlled study 122 aged 82 Aged 80 major clinical study 66 clinical article 65 middle aged 44 Adolescent 40 Argentina 32 Article 30 human tissue 25 human cell 24 Severity of Illness Index 22 Case-Control Studies 20 Young Adult 20 adolescent 20 clinical trial 18 protein expression 18 cell proliferation 17 Aged, 80 and over 16