Das, S Preformed laryngeal masks. [electronic resource] - Anaesthesia Jul 2000 - 701-2 p. digital Publication Type: Letter ISSN: 0003-2409 Standard No.: 10.1046/j.1365-2044.2000.01557-13x./ doi Subjects--Topical Terms: Equipment DesignHumansLaryngeal MasksSterilization