https://www.ecajs.org/article/119311-oesophageal-foreign-bodies-an-experience-with-rigid-oesophagoscopy-in-a-developing-country
Oesophageal Foreign Bodies: An Experience with Rigid Oesophagoscopy in a Developing Country |...
By TO Adedeji, AA Haastrup. ...
foreign bodiesin aexperiencerigidoesophagoscopy