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Li, Ying; Zhu, Chunyan . (2020). Development and In Vitro and In Vivo Evaluation of Microspheres Containing Sodium N-[8-(2-hydroxybenzoyl)amino]caprylate for the Oral Delivery of Berberine Hydrochloride. Molecules, 25(8), 1957–. doi:10.3390/molecules25081957 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research