1. Congenital absence of the trachea;Payne;Brooklyn Medical Journal,1900
2. Congenital absence of the trachea;van Veenedaal;Eur J Pediatr,2000
3. Congenital malformations of the trachea, bronchi and lung;Holinger;Ann Otol Rhinol Laryngol,1952
4. Pathological quiz case 1. Tracheal Agenesis (Floyd’s Type II);Weil;Arch Otolaryngol Head Neck Surg,1991
5. Agenesis of the trachea;Floyd;Am Rev Respir Dis,1962