Howells T H, Riethmuller R J
Anaesthesia. 1980 Oct;35(10):984-6. doi: 10.1111/j.1365-2044.1980.tb04997.x.
A case of oesophageal intubation is described in which simulated lung ventilation occurred to a convincing degree. The signs relevant to correct endotracheal placement are discussed and explanations for the observed events are offered.