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Palmer, J. H. MacG.; Sury, M. R. J.; Cook, T. M.; Pandit, J. J. . (2017). Disease coding for anaesthetic and peri-operative practice: an opportunity not to be missed. Anaesthesia, (), –. doi:10.1111/anae.13875 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research