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- [3] Impacted foreign body in the esophagus - An unusual case ARCHIVES OF OTOLARYNGOLOGY, 1939, 29 (03): : 550 - 552
- [4] An unusual case of impacted oesophageal foreign body Indian Journal of Otolaryngology and Head and Neck Surgery, 2002, 54 (4): : 297 - 298
- [5] A case of foreign body impacted at the duodenojejunal flexure AMERICAN JOURNAL OF ROENTGENOLOGY AND RADIUM THERAPY, 1928, 20 : 370 - 372