human 121 male 121 child 105 Male 100 Humans 98 female 96 Female 84 Child 74 adolescent 68 Adolescent 55 Article 34 preschool child 31 major clinical study 30 controlled study 27 psychology 27 Child, Preschool 24 adult 22 Gender studies, gender groups 21 article 19 Children 18 case report 18 questionnaire 18 longitudinal study 17 diagnostic imaging 16 school child 16 Adult 15 Longitudinal Studies 15 child parent relation 15 cross-sectional study 14 procedures 14