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S. Fujisawa; T. Shirao; C. Aoki. (2006). In vivo, competitive blockade of N-methyl-d-aspartate receptors induces rapid changes in filamentous actin and drebrin A distributions within dendritic spines of adult rat cortex. , 140(4), 0–1187. doi:10.1016/j.neuroscience.2006.03.009 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research