1. Jackson C. Peroral endoscopy and laryngeal surgery. The Laryngoscope Co., 1915, St. Louis, Mo. 201
2. Fan LL, Flynn JW. Laryngoscopy in neonates and infants: experience with flexible fiberoptic bronchoscopy.Laryngoscope 1981;91: 451–456
3. Fitzpatrick SB, Marsh B, Stokes KD,et al. Indications for flexible fiberoptic bronchoscopy in pediatric patients.Am J Dis Child 1983;137: 595–597
4. Holinger LD. Etiology of stridor in the neonate, infant and child.Ann Otol 1990;89: 397–400
5. Nussbaum E. Flexible fiberoptic bronchoscopy and laryngoscope in infants and children.Laryngoscopy 1983;93: 1073–1075