human 119 child development 106 Humans 104 female 103 male 100 child 95 Female 83 Male 83 Child Development 80 Child 69 preschool child 60 physiology 58 Child, Preschool 51 article 37 adolescent 36 major clinical study 35 Article 34 infant 33 adult 31 psychology 31 human experiment 29 Adolescent 28 Infant 27 controlled study 26 Adult 23 child behavior 19 child parent relation 19 longitudinal study 19 Longitudinal Studies 17 school child 16