Seraj, M A Tracheal soiling with blood during intranasal surgery--comparison of two endotracheal tubes. [electronic resource] - Middle East journal of anaesthesiology Feb 1991 - 79-89 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0544-0440 Subjects--Topical Terms: AdolescentAdultBloodEquipment DesignFemaleHumansIntubation, Intratracheal--instrumentationMaleMiddle AgedNose--surgeryTrachea