1. Division of Psychology, St Jude Children's Research Hospital, 332 N Lauderdale, Memphis, TN38105-2794
2. Division of Psychology, the Department of Nursing, and the Department of Hematology-Oncology, St. Jude Children's Research Hospital, Memphis, TN, Department of Psychology, University of Memphis, Memphis, TN, Department of Pediatrics, University of Tennessee School of Medicine, Memphis, TN