UNIVERSITY HOSPITAL ANTWERP, EDEGEM, Belgium
CHU SART-TILMAN, LIEGE, Belgium
OLV ZIEKENHUIS, Aalst, AALST, Belgium
CHU CHARLEROI, Charleroi, CHARLEROI, Belgium
Cliniques universitaires Saint-Luc, BRUXELLES, Belgium
Centre Hospitalier Hornu-Frameries, Hornu, Belgium
UZ GASTHUISBERG, Leuven, LEUVEN, Belgium
UMC ST RADBOUD, NIJMEGEN, The Netherlands