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2 A.M. Joffe, M.F. Aziz, K.L. Posner, et al. Management of difficult tracheal intubation. A Closed Claims Analysis Anesthesiology., 131 (2019), pp. 818-829

3 X. Chen, Y. Gong, X. Guo, et al. Perioperative Management of Patients Infected with the Nevel Coronavirus Recomendation from the Joint Task Force of The Chinese Society of Anesthesiology and Chinese Association of Anesthesiologists. Anesthesiology., 132 (2020), pp. 1307-1316

4 D. Hall, A. Steel, P. Young, et al. Videolaryngoscopy increases ‘mouth to mouth distance compared winth direct laryngoscopy Anaesthesia, 75 (2020), pp. 822-823

5 K. El Boghadadly, D.J.N. Wong, R. Owen, et al. Risks to healthcare workers following tracheal intubation of patients with COVID-19: a prospective international multicentre cohort study Anaesthesia., 75 (2020), pp. 1437-1447