[1] INST GUSTAVE ROUSSY,DEPT PEDIAT,F-94805 VILLEJUIF,FRANCE
[2] HOP JEAN MINJOZ,BONE MARROW TRANSPLANT UNIT,BESANCON,FRANCE
[3] CTR PAYL PAPIN,DEPT PEDIAT,ANGERS,FRANCE
[4] CTR HOSP BRABOIS,DEPT PEDIAT,VANDOEUVRE NANCY,FRANCE
[5] HOP DEBROUSSE,DEPT PEDIAT,F-69005 LYON,FRANCE
[6] CTR LEON BERARD,BIOSTAT UNIT,F-69373 LYON 2,FRANCE