Li, H. [P:(DE-HGF)0] ; Schygulla, U. [P:(DE-HGF)0] ; Hoffmann, J. [P:(DE-Juel1)141929] ; Niehoff, P. [P:(DE-Juel1)144671] ; Haas-Santo, K. [P:(DE-HGF)0] ; Dittmeyer, R. [P:(DE-HGF)0]