[1] CATHOLIC UNIV LEUVEN, MED CTR, DEPT HEMATOL, B-3000 LOUVAIN, BELGIUM
[2] OSPED SAN MARTINO GENOVA, DEPT HEMATOL, GENOA, ITALY
[3] CLIN UNIV ST LUC, DEPT HEMATOL, B-1200 BRUSSELS, BELGIUM
[4] ST ANNA CHILDRENS HOSP, DEPT PEDIAT HEMATOL & ONCOL, VIENNA, AUSTRIA
[5] HOP ST ANTOINE, DEPT HEMATOL, F-75571 PARIS 12, FRANCE
[6] HOP HOTEL DIEU, DEPT HEMATOL, NANTES, FRANCE
[7] UNIV BESANCON, MED CTR, DEPT HEMATOL, F-25030 BESANCON, FRANCE
[8] UNIV MUNICH, MED CTR, DEPT HEMATOL, W-8000 MUNICH 2, GERMANY
[9] HANUSCH HOSP, DEPT LEUKEMIA RES & HEMATOL, VIENNA, AUSTRIA
[10] UNIV ZAGREB, MED CTR, DEPT HEMATOL, YU-41001 ZAGREB, CROATIA
[11] UNIV VIENNA, MED CTR, DEPT HEMATOL, A-1010 VIENNA, AUSTRIA
[12] UNIV ROME LA SAPIENZA, POLICLIN UMBERTO 1, DEPT HEMATOL, I-00185 ROME, ITALY
[13] INST J PAOLI I CALMETTES, DEPT HEMATOL, F-13009 MARSEILLE, FRANCE
[14] HADASSAH UNIV HOSP, DEPT BONE MARROW TRANSPLANTAT, JERUSALEM, ISRAEL
[15] UNIV INNSBRUCK, MED CTR, DEPT IMMUNOBIOL, A-6020 INNSBRUCK, AUSTRIA
[16] HOP HAUT LEVEQUE, DEPT HEMATOL, PESSAC, ITALY
[17] UNIV PARMA, MED CTR, DEPT HEMATOL, I-43100 PARMA, ITALY
[18] FREE UNIV BERLIN, KLINIKUM CHARLOTTENBURG, MED CTR, DEPT HEMATOL & ONCOL, W-1000 BERLIN 19, GERMANY
[19] HOP HENRI MONDOR, DEPT HEMATOL, F-94010 CRETEIL, FRANCE
[20] CATHOLIC UNIV NIJMEGEN, MED CTR, DEPT HEMATOL, NIJMEGEN, NETHERLANDS
[21] BEHRINGWERKE AG, W-3550 MARBURG, GERMANY