Dutta, Sumanta Kumar Growth retardation due to undiagnosed foreign body oesophagus. [electronic resource] - Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India Apr 2005 - 162-3 p. digital Publication Type: Journal Article ISSN: 2231-3796 Standard No.: 10.1007/BF02907681 doi