Boyce, H W Peroral esophageal dilation over a guide wire: fluoroscopy, endoscopy, or "blind" passage. [electronic resource] - The American journal of gastroenterology Apr 1989 - 358 p. digital Publication Type: Editorial ISSN: 0002-9270 Subjects--Topical Terms: Dilatation--methodsEsophageal Stenosis--therapyEsophagoscopyFluoroscopyHumans