1. Blevins NH, Byahatti SV, Karmody CS. External auditory canal duplication anomalies associated with congenital aural Artesia. J Laryngol Otol 2003; 117(01):32-38.
2. Leu YS, Chang KC. First branchial cleft anomalies: report of 12 cases. Ear Nose Throat J 1998; 77(10):832-3, 837-8.
3. Flint PW, Haughey BH, Lund VJ, Niparko JK, et al. Cummings Otolaryngology Head & Neck Surgery. 5th ed. Philadelphia: Frank Polizzano 2010:2585.
4. Triglia JM, Nicollas R, Ducroz V, Koltai PJ, Garabedian EN. First branchial cleft anomalies. A study of 39 cases and a review of the literature. Arch Otolaryngol Head Neck Surg 1998; 124(3): 291-5.
5. May M, Angelo AJ. The facial nerve and the branchial cleft. Surgical challenge. Laryngoscope 1989;90(5): 564-5.
6. Work WP. Newer concept of first branchial cleft defects. Laryngoscope 1972;82(9):1581-93.
7. Barkdull GC, Carvalho D. Goldenhar syndrome with external auditory canal stenosis complicated by canal cholesteatoma and first branchial cleft cyst. Int J of Pediat Otorhinolaryngol Extra 2007; 2(2):128-132.
8. Ford GR, Balakrishnan A, Evans JN, Bailey CM. Branchial cleft and pouch anomalies. J Laryngol Otol 1992; 106(06):137-143.
9. Lambert PR, Dodson EE. Congenital malformations of the external auditory canal. Otolaryngol Clin North Am 1996; 29(5):741-60.
10. Yalcin S, Karlidag T, Kaygusuz I, Demirbag E. First branchial cleft sinus presenting with cholesteatoma and external auditory canal atresia. Int J Pediatr Otorhinolaryngol 2003;67(7):811-14.
11. Lee S, Saleh HA, Abramovich S. First branchial cleft sinus presenting with cholesteatoma. J Laryngol Otol 2000;114:210-11.