Eder-Puestow "stringless" dilators.
Kravetz
Robert E
RE
Archives Committee, American College of Gastroenterology, USA. bob@browneis.com
D002404:Catheterization / Q000266:history* / Q000295:instrumentation; D020776:Endoscopes, Gastrointestinal / Q000266:history*; D016099:Endoscopy, Gastrointestinal / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D014481:United States