[1] CATHOLIC UNIV LEUVEN,CTR HUMAN GENET,HERESTR 49,B-3000 LOUVAIN,BELGIUM
[2] STATE UNIV GHENT HOSP,DEPT PEDIAT HEMATOL & ONCOL,B-9000 GHENT,BELGIUM
[3] H HART GEN HOSP,EEKLO,BELGIUM
[4] STATE UNIV GHENT HOSP,DEPT MED GENET,B-9000 GHENT,BELGIUM
[5] STATE UNIV GHENT HOSP,DEPT PATHOL,B-9000 GHENT,BELGIUM