1. Coins in the esophagus: A departure from conventional therapy;Aiken;Milit Med,1965
2. Blind esophageal coin removal using a Foley catheter;Brown;Arch Surg,1968
3. Questionable methods of foreign body treatment;Ritter;Ann Otol,1974
4. Unexpected radiographic findings related to foreign bodies;Morioka;Ann Otol,1975
5. Extraluminal foreign bodies (coins) in the food and air passages;Yee;Ann Otol,1975