child human 263 male 226 female 224 Humans 194 school child 179 Child 164 Article 143 Female 137 Male 136 adolescent 134 major clinical study 122 controlled study 117 Adolescent 97 preschool child 80 adult 77 article 68 psychology 58 clinical article 57 human experiment 51 Child, Preschool 49 school 48 Schools 43 questionnaire 41 young adult 36 priority journal 35 Adult 34 cross-sectional study 33 cohort analysis 31 procedures 31