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Dave, Bharat R.; Degulmadi, Devanand; Dahibhate, Shreekant; Krishnan, Ajay; Patel, Denish . (2018). Ultrasonic bone scalpel: utility in cervical corpectomy. A technical note. European Spine Journal, (), –. doi:10.1007/s00586-018-5536-x 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research