1 Division of Pediatric Hematology/Oncology, The Herman and Walter Samuelson Children's Hospital at Sinai, Baltimore, MD 21215-5271, USA; Johns Hopkins Berman Institute of Bioethics, Baltimore, MD, USA. Electronic address: [email protected].
2 Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.
3 Texas Children's Cancer Center, Baylor College of Medicine, Houston, TX, USA.
4 St Jude Children's Research Hospital, Memphis, TN, USA.
5 Department of Nursing Research and Evidence-Based Practice, Stanford Medicine Children's Health, Stanford, CA, USA; Division of Pediatric Hematology/Oncology, Stanford University School of Medicine, Stanford, CA, USA.
6 University of Iowa, Iowa City, IA, USA.
7 Pediatric Hematology-Oncology, IWK Health Centre, Dalhousie University, Halifax, NS, Canada.