%0 Journal Article %T Safety, efficacy and airway complications of the flexible laryngeal mask airway in functional endoscopic sinus surgery: A retrospective study of 6661 patients %A Xi, Chunhua %A Shi, Dongjing %A Cui, Xu %A Wang, Guyan %J PLoS ONE %V 16 %N 2 %D 2021-02-04 %I Public Library of Science %~ DeepDyve