Sex Factors Humans 143 human 143 male 143 female 142 sex factor 140 Male 139 Female 137 adult 97 Adult 82 middle aged 63 Middle Aged 62 Age Factors 61 age 61 young adult 59 Young Adult 55 Adolescent 52 adolescent 52 aged 44 psychology 43 Aged 42 Article 42 child 41 Child 36 controlled study 31 major clinical study 31 risk factor 29 cross-sectional study 27 sex difference 27 questionnaire 26