1. Complication from a nasopharyngeal airway in a patient with a basilar skull fracture;Muzzi;Anesthesiology,1991
2. Naso-tracheal intubation in the presence of facial fractures;WP;JAMA,1989
3. 3. Haug RH, Indresano AT. Management of maxillary fractures. In: Peterson LJ, ed. Principles of oral and maxillofacial surgery. Philadelphia: JB Lippincott, 1992: 469-88.
4. Tracheostomy, complications and their management;JY;Arch Otolaryngol,1972
5. 5. Walker DG. Complications of tracheostomy: their prevention and treatment. J Oral Surg 1973; 31: 480-2.