human 59 Humans 53 male 52 female 50 intellectual impairment 43 Article 41 adult 37 Intellectual Disability 34 Female 33 Male 33 adolescent 33 child 29 Adult 27 Child 26 controlled study 24 Adolescent 23 major clinical study 19 intellectual disability 18 clinical article 17 middle aged 17 autism 14 preschool child 14 young adult 14 Child, Preschool 13 Intellectual disability 13 Young Adult 12 Middle Aged 11 COVID-19 10 Neurosciences 10 cross-sectional study 10