Humans 131 Middle Aged article controlled study female human 131 Female 127 adult 127 Male 117 male 113 Adult 105 priority journal 98 Aged 69 aged 69 major clinical study 55 clinical article 48 Adolescent 42 middle aged 30 Argentina 29 adolescent 26 human cell 26 human tissue 17 protein expression 17 Animals 16 Case-Control Studies 16 Young Adult 16 disease association 16 nonhuman 16 Child 14 Severity of Illness Index 14