1 Paula R. and Ronald C. Parker Endowed Professor in Nursing and Associate Professor Nursing, Harris College of Nursing and Health Sciences, Texas Christians University, Annie Richardson Bass Building 3206, USA. Electronic address: carol.howe@tcu.edu.
2 Boston Children's Hospital, Department of Orthopedics, 300 Longwood Avenue, Boston, MA 02115, USA. Electronic address: Rachel.Difazio@childrens.harvard.edu.