1. School of Nursing, Duke University, Durham, North Carolina, USA
2. Mo-Im Kim Nursing Research Institute, Yonsei University College of Nursing, Seoul, South Korea
3. Department of Head and Neck Surgery and Communication Sciences, Duke University, Durham, North Carolina, USA
4. Pratt School of Engineering, Duke University, Durham, North Carolina, USA
5. Geriatric Research, Education, and Clinical Center, Durham Veterans Affairs Health Care System, North Carolina, USA
6. Department of Biology, Carleton College, Northfield, Minnesota, USA
7. Lane Medical Library & Knowledge Management Center, Stanford University, California, USA
8. School of Nursing, University of Maryland, Baltimore, USA