Authors: R Schachler; T Sauerbruch; U Wosiewitz; J Holl; D Hahn; R Denk; M Neubrand; G Paumgartner Journal: Hepatology Date: 1988 Jul-Aug Impact factor: 17.425
Authors: M Sackmann; M Delius; T Sauerbruch; J Holl; W Weber; E Ippisch; U Hagelauer; O Wess; W Hepp; W Brendel Journal: N Engl J Med Date: 1988-02-18 Impact factor: 91.245
Authors: N Villanova; F Bazzoli; F Taroni; R Frabboni; G Mazzella; D Festi; L Barbara; E Roda Journal: Gastroenterology Date: 1989-09 Impact factor: 22.682