1. Congenital Bronchial Abnormalities Revisited
2. Miller BJ, Morrison MD. Congenital tracheal web: a case report. J Otolaryngol 1978; 7:218-222
3. Landing BH, Wells TR. Tracheobronchial anomalies in children. Perspect Pediatr Pathol 1973; 1:1-32
4. Incomplete tracheal duplication associated with severe unilateral lung hypoplasia
5. Sen MK, Mehta C, Chakrabarti S, Suri JC. Tracheal duplication as a cause of congenital stridor. Indian J Chest Dis Allied Sci 1999; 41:159-162