Article InformationAuthors: Lerna, A.; Esposito, D.; Conson, M.; Massagli, A.Year: 2014Publication: International journal of language & communication disordersVolume: 49Issue: 4Pages: 478-85DOI: 10.1111/1460-6984.12079 Final Quality and Data Extraction DecisionsAge: Birth to 35.9 months (0-2.9 years)36-71.9 months (3-5.9 years)Domains: CommunicationJoint attentionPlaySocialIntervention: Augmentative and alternative communicationPicture Exchange Communication System (PECS®)