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Au, Angel Hoe-chi; Shum, Kathy Kar-man; Cheng, Yongtian; Tse, Hannah Man-yan; Wong, Rose Mui-fong; Li, Johnson; Au, Terry Kit-fong . (2020). Autism spectrum disorder screening in preschools. Autism, (), 136236132096752–. doi:10.1177/1362361320967529 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research