Corresponding author:
David E. Fisher
Division of Pediatric Hematology/Oncology
Dana Farber Cancer Institute and Children's Hospital
Harvard Medical School,
44 Binney St.
Boston, MA 02115
Tel: (617) 632-4916
Fax: (617)632-2085
E-mail: (David Fisher):david_fisher@dfci.harvard.edu
E-mail: (Gaèl McGill ): gmcgill@student.med.harvard.edu