1. A case of obstructed deglutition from a preternatural dilatation of, and a bag formed, in the pharynx;Ludlow;Medical Observations and Inquiries of the Society of Physicians,1769
2. Epithelioma in an esophageal pouch;Pitt;Trans Pathol Soc Lond,1896
3. Simultaneous occurrence of multiple lesions in the esophagus. Report of three cases;Vinson;Arch Otolaryngol,1927
4. Carcinoma occurring in pharyngoesophageal diverticulum: report of three cases;Wychulis;Surgery,1969