Bowen, A., M. Bhabra, S. Dresner, and S. Lester. “Combined Approach Dilatation of Complete Oesophageal Stenoses”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 6, no. 6, May 2020, pp. 1025-9, doi:10.18203/issn.2454-5929.ijohns20202199.