title: Back to the future: the first papillotomy at Erlangen.
authors.forename: M
authors.initials: M
authors.lastname: Classen
mesh_terms: D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000266:history*; D005260:Female; D005858:Germany; D049673:History, 20th Century; D006801:Humans; D016717:Sphincterotomy, Endoscopic / Q000266:history*