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Mohamed Attauabi;Jakob Seidelin;Johan Burisch;. (2021). Association between 5-aminosalicylates in patients with IBD and risk of severe COVID-19: an artefactual result of research methodology? . Gut, (), –. doi:10.1136/gutjnl-2021-324397 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research