“…The purpose of this review was to examine the etiology of Down Syndrome only, during the coding process we came across papers that used participants with DS exclusively, and participants with DS in comparison with participant such as Autistic Spectrum Disorder [83][84][85][86][87][88], or compared DS with Intellectual Disability [75,[89][90][91][92], Neurodevelopmental Disorder (NDD) [93][94][95] or DS with Neurotypical Peers (NT) [46,67,75]. These were the broader terms that we came across during the coding process.…”