Witte, J. C. [P:(DE-HGF)0] ; Thompson, A. M. [P:(DE-HGF)0] ; Schmidlin, F. J. [P:(DE-HGF)0] ; Oltmans, S. J. [P:(DE-HGF)0] ; Smit, H. G. J. [P:(DE-Juel1)16203]