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Litwinowicz, Radoslaw; Bartus, Magdalena; Malec-Litwinowicz, Michalina; Michalski, Michal; Banaszkiewicz, Krzysztof; Kapelak, Boguslaw; Lakkireddy, Dhanunjaya; Bartus, Krzysztof . (2019). Left Atrial Appendage Occlusion for Secondary Stroke Prevention in Patients with Atrial Fibrillation: Long-Term Results. Cerebrovascular Diseases, (), 1–8. doi:10.1159/000500850 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research