1. MA Fragala-Pinkham, PT, MS, is Clinical Researcher, Research Center for Children with Special Health Care Needs, Franciscan Hospital for Children, 30 Warren St, Boston, MA 02135 (USA)
2. SM Haley, PT, PhD, is Associate Director, Health and Disability Research Institute, Boston University, Boston, Mass, and Director of Research, Research Center for Children with Special Health Care Needs, Franciscan Hospital for Children
3. J Rabin, DO, is Director of Physical Medicine and Rehabilitation, Children's National Medical Center, Washington, DC. At the time of the study, Dr Rabin was Director of Physical Medicine and Rehabilitation, Franciscan Hospital for Children
4. VS Kharasch, MD, is Director of Pulmonology, Franciscan Hospital for Children, and Assistant in Medicine, Childrens Hospital, Boston, Mass