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OESOPHAGOSCOPY: A MEANS OF DETECTING FOREIGN BODIES NON-OPAQUE TO X RAYS
Br Med J 1925; 1 doi: https://doi.org/10.1136/bmj.1.3353.656 (Published 04 April 1925) Cite this as: Br Med J 1925;1:656This is a PDF-only article. The first page of the PDF of this article appears above.