human 195 female 152 Humans 151 male 151 Female 102 Male 99 adolescent 99 child 99 L Education (General) 88 Adolescent 85 LB Theory and practice of education 80 LB1603 Secondary Education. High schools 76 adult 76 major clinical study 73 controlled study 72 Child 70 Article 64 article 59 psychology 46 school child 45 Adult 38 preschool child 38 cross-sectional study 37 human experiment 37 Schools 34 prevalence 34 questionnaire 34 Students 33 young adult 32 Education 31