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Prada, Francesco; Del Bene, Massimiliano; Casali, Cecilia; Saladino, Andrea; Legnani, Federico Giuseppe; Perin, Alessandro; Moiraghi, Alessandro; Richetta, Carla; Rampini, Angela; Mattei, Luca; Vetrano, Ignazio Gaspare; Fornaro, Riccardo; Saini, Marco; Martegani, Alberto; DiMeco, Francesco . (2015). Intra-operative navigated angio-sonography for skull base tumor surgery. World Neurosurgery, (), S1878875015008918–. doi:10.1016/j.wneu.2015.07.025 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research