Heeg, K. P. [P:(DE-HGF)0] ; Ott, C. [P:(DE-H253)PIP1018108] ; Schumacher, D. [P:(DE-H253)PIP1012545] ; Wille, H.-C. [P:(DE-H253)PIP1006032] ; Röhlsberger, R. [P:(DE-H253)PIP1000401] ; Pfeifer, T. [P:(DE-H253)PIP1010834] ; Evers, J. [P:(DE-H253)PIP1016798]