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Ortuño‐Lizarán, Isabel; Sánchez‐Sáez, Xavier; Lax, Pedro; Serrano, Geidy E.; Beach, Thomas G.; Adler, Charles H.; Cuenca, Nicolás . (2020). Dopaminergic retinal cell loss and visual dysfunction in Parkinson's disease. Annals of Neurology, (), ana.25897–. doi:10.1002/ana.25897 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research