1. Hubert Piessevaux, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels; Marc Buyse, International Drug Development Institute, Louvain-la-Neuve; Eric Van Cutsem and Sabine Tejpar, University Hospital Gasthuisberg, Leuven, Belgium; Michael Schlichting and Steffen Heeger, Merck KGaA, Darmstadt; and Carsten Bokemeyer, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany.