“…The flow-volume curve was consistent with an upper airway obstruction pattern in five patients [ 3 – 5 , 11 , 14 ], decreased %FEV 1.0 was reported in two patients [ 3 , 5 ], and decreased peak expiratory flow was reported in three patients [ 3 , 5 , 14 ]. Ten of the 17 patients underwent surgery [ 3 , 5 – 8 , 10 , 15 , 17 , 18 ]. The airway was secured by tracheal intubation in seven patients [ 3 , 5 – 7 , 15 , 18 ].…”