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Barton, Reenee; Heyman, Isobel . (2016). Obsessive–compulsive disorder in children and adolescents. Paediatrics and Child Health, (), S1751722216301500–. doi:10.1016/j.paed.2016.08.011 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research