Authors: Franz Allerberger; Peter Fida; Roland Grossgut; Michael Schönbauer; Herbert Würzner Journal: Wien Klin Wochenschr Date: 2003-09-30 Impact factor: 2.275
Authors: Jürgen Löhler; Heidrun Hirner; Bernhard Schmidt; Klaus Kramer; Dietmar Fischer; Dietmar R Thal; Frank Leithäuser; Uwe Knippschild Journal: PLoS One Date: 2009-01-12 Impact factor: 3.240