1. Center for Cancer and Blood Disorders, Connecticut Children's,Hartford, Connecticut, USA.
2. Division of Pain and Palliative Medicine, Connecticut Children's, Hartford, Connecticut, USA.
3. Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
4. Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
5. Department of Pediatrics, University of Connecticut School of Medicine, Farmington, Connecticut, USA.
6. School of Science, Indiana University–Purdue University Indianapolis, Indianapolis, Indiana, USA.