title: Effects on communicative requesting and speech development of the Picture Exchange Communication System in children with characteristics of autism.
authors.affiliation: University of Texas, San Antonio, TX 78249, USA. jganz@utsa.edu
authors.forename: Jennifer B
authors.initials: JB
authors.lastname: Ganz
authors.forename: Richard L
authors.initials: RL
authors.lastname: Simpson
mesh_terms: D001321:Autistic Disorder / Q000150:complications*; D002648:Child; D002663:Child Language; D002675:Child, Preschool; D003143:Communication Devices for People with Disabilities; D003147:Communication Disorders / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D016896:Treatment Outcome