[1] ST MARYS HOSP,DEPT MED GENET,IMMUNOGENET LAB,LONDON,ENGLAND
[2] CRC,PAEDIAT CANC STUDY GRP,LONDON,ENGLAND
[3] CHRISTIE HOSP,ACAD DEPT PEDIAT ONCOL,MANCHESTER,LANCS,ENGLAND
[4] ROYAL MANCHESTER CHILDRENS HOSP,DEPT HAEMATOL & ONCOL,PENDLEBURY,ENGLAND
[5] MASHHAD UNIV MED SCI,DEPT MED GENET,MASHHAD,IRAN