[1] UNIV CATHOLIQUE LOUVAIN,CELLULAR GENET UNIT,B-1200 BRUSSELS,BELGIUM
[2] NETHERLANDS CANC INST,AMSTERDAM,NETHERLANDS
[3] IST NAZL STUDIO & CURA TUMORI,I-20133 MILAN,ITALY
[4] UNIV CATHOLIQUE LOUVAIN,CLIN UNIV ST LUC,DERMATOL SERV,BRUSSELS,BELGIUM
[5] UNIV CATHOLIQUE LOUVAIN,CLIN UNIV ST LUC,MED ONCOL SERV,BRUSSELS,BELGIUM
[6] CLIN NOTRE DAME,SERV ONCOL,CHARLEROI,BELGIUM
[7] CLIN GEN ST JEAN,MED ONCOL SERV,BRUSSELS,BELGIUM
[8] UNIV ZIEKENHUIS GHENT,DERMATOL SERV,GHENT,BELGIUM
[9] CTR JEAN PERRIN,CLERMONT FERRAND,FRANCE
[10] FREE UNIV BRUSSELS,INST JULES BORDET,ONCOL & CHIRURG EXPTL LAB,BRUSSELS,BELGIUM
[11] UNIV FRANKFURT,AKAD LEHRKRANKENHAUS,KRANKENHAUS NORDWEST,MED KLIN 2,FRANKFURT,GERMANY