[1] WPA Sect Psychiat Intellectual Disabil, Florence, Italy
[2] San Sebastian Fdn, CREA Res & Clin Ctr, Florence, Italy
[3] Australian Natl Univ, Coll Hlth & Med, Ctr Mental Hlth Res, Acton, Australia
[4] Harvard Med Sch, Boston Childrens Hosp, Dev Med Ctr, Boston, MA 02115 USA
[5] Italian Natl Inst Hlth, Autism Natl Observ, Rome, Italy
[6] Sidra Med, Doha, Qatar
[7] Weill Cornell Med, Doha, Qatar
[8] Pakistan Psychiat Res Ctr, Lahore, Pakistan