Klin, Ami, and Warren Jones. “Measurement and Mismeasurement of Social Development in Infants Later Diagnosed With Autism Spectrum Disorder”. International Journal of Statistics in Medical Research 4, no. 2 (May 21, 2015): 180–187. Accessed May 2, 2025. https://www.lifescienceglobalca.com/index.php/ijsmr/article/view/3021.