human 63 Humans 53 intellectual impairment 51 male 48 Article 47 female 47 Intellectual property law 43 adult 38 Intellectual Disability 34 Female 29 Male 27 adolescent 27 child 24 controlled study 24 Adult 23 major clinical study 23 Copyright law 22 Child 20 Adolescent 18 Intellectual capital 18 intellectual disability 18 middle aged 17 Sociology 16 autism 16 clinical article 16 Entertainment & media law 14 Intellectual property 14 History 13 Intellectual disability 13 cross-sectional study 13