From the Departments of Hematology-Oncology (R.C.R., J.A.W.), and Biostatistics and Epidemiolgy (A.L.), the International Outreach Program (R.C.R., J.A.W.), and Clinical Nutrition Services (K.S.), St. Jude Children's Research Hospital, Memphis, Tennessee, U.S.A.; the Department of Pediatrics (D.D., R.C.R., J.A.W.), University of Tennessee College of Medicine, Memphis, Tennessee, U.S.A.; Hospital de Niños Benjamin Bloom (M.B.), San Salvador, El Salvador; and Instituto Materno-Infantil de Pernambuco (F.P.), Recife, Brazil.
Submitted for publication October 8, 1999; accepted January 4, 2000.
Supported in part by grant RR00211 from the U.S. Public Health Service General Clinical Research Center and by the American Lebanese Syrian Associated Charities (ALSAC).
Address correspondence and reprint requests to Dr. Judith A. Wilimas, Saint Jude Children's Research Hospital, Division of Hematology/Oncology, 332 North Lauderdale Street, Memphis, TN 38101. E-mail: [email protected]
