Haglund N, Dahlgren S, Källén K, Gustafsson P, Råstam M. The Observation Scale for Autism (OSA): A New Screening Method to Detect Autism Spectrum Disorder before Age Three Years. J. Intellect. Disabl. Diagn. Treat. [Internet]. 2016 Jan. 7 [cited 2024 Dec. 29];3(4):230-7. Available from: http://lifescienceglobalca.com/index.php/jiddt/article/view/3530