Herniation of the laryngeal mask airway classic.
D000402:Airway Obstruction / Q000209:etiology / Q000517:prevention & control; D004209:Disposable Equipment / Q000592:standards; D004867:Equipment Design / Q000009:adverse effects* / Q000592:standards; D006801:Humans; D017214:Laryngeal Masks / Q000009:adverse effects* / Q000592:standards