Autism Spectrum Disorder

• Institute for Biomedical Research and Innovation (IRIB) - National Research Council (CNR) — Messina, Italy

• All research was conducted via tele-research due to COVID-19 — Vallejo, California, United States

• Üsküdar University — Istanbul, Turkey (Türkiye)

Not specified

• Yale University Child Study Center — New Haven, Connecticut, United States

• Rutgers University - New Brunswick — Piscataway, New Jersey, United States

• Walden University — Minneapolis, Minnesota, United States

• Rush University Medical Center — Chicago, Illinois, United States

• Robert Debré Hospital — Paris, France
• Hospital Clínic de Barcelona — Barcelona, Spain
• Servicio de Psiquiatría del Niño y del Adolescente, Hospital General Universitario Gregorio Marañón, SERMAS — Madrid, Spain
• University of Salamanca & Complejo asistencial de Zamora — Salamanca, Spain

• Sant Joan de Déu Barcelona Children's Hospital, Sant Joan de Déu Research Foundation (Research Institute) — Barcelona, Spain