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Groudine, Scott B.; Fisher, Hugh A. G.; Kaufman, Ronald P.; Patel, Manoj K.; Wilkins, Lance J.; Mehta, Sudha A.; Lumb, Philip D. . (1998). Intravenous Lidocaine Speeds the Return of Bowel Function, Decreases Postoperative Pain, and Shortens Hospital Stay in Patients Undergoing Radical Retropubic Prostatectomy. Anesthesia & Analgesia, 86(2), 235–239. doi:10.1097/00000539-199802000-00003 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research