F.K Wacker -
Benjamin Franklin Campus, Charité University Hospitals, Berlin, Germany
R.M Maes -
Gemini-Ziekenhuis, Den Helder, The Netherlands
J.L Duerk -
Case Western University Hospitals, Cleveland, OH, USA
B Misselwitz -
Schering AG, Berlin, Germany
C.J.M Kiewiet -
Gemini-Ziekenhuis, Den Helder, The Netherlands
J.S Lewin -
Johns Hopkins University Hospital, Baltimore, MD, USA