Author
Elisabeth Waldmann 1
1 Quality Assurance Working Group Of The Austrian Society Of Gastroenterology And Hepatology, Vienna, Austria;div. Of Gastroenterology And Hepatology, Dept. Of Internal Medicine Iii, Medical University
1 Quality Assurance Working Group Of The Austrian Society Of Gastroenterology And Hepatology, Vienna, Austria;div. Of Gastroenterology And Hepatology, Dept. Of Internal Medicine Iii, Medical University