Child child 239 human 239 Humans 238 female 201 male 201 Female 183 Male 182 child parent relation 142 psychology 136 adolescent 120 Adolescent 116 preschool child 102 Child, Preschool 99 Parents 90 adult 90 Adult 77 Article 67 Parenting 59 controlled study 56 questionnaire 55 major clinical study 51 Surveys and Questionnaires 48 longitudinal study 44 article 41 infant 41 Longitudinal Studies 39 physiology 39 Parent-Child Relations 38 mother 38