Endoscopy, Table of Contents Endoscopy 1987; 19(6): 257DOI: 10.1055/s-2007-1018298 LETTERS TO THE EDITOR© Georg Thieme Verlag KG Stuttgart · New YorkComment on Dr. Börsch's Letter to the EditorW. Pimpl 1st Surg. Department LKA, A-5020 Salzburg, Austria Recommend Article Abstract PDF Download(opens in new window) Buy Article(opens in new window) See also:Prognostication and Stratification in Upper GI Bleeding: Uni- or Multivariate Statistical Analyses?Endoscopy 1987; 19(06): 256-257DOI: 10.1055/s-2007-1013009 See also Prognostication and Stratification in Upper GI Bleeding: Uni- or Multivariate Statistical Analyses? PDF (1220 kb)