Affiliation: | 1. Associate Professor, School of Nursing, Duke University, Durham, NC, USA;2. Post-graduate student, School of Nursing, Duke University, Durham, NC, USA;3. Research and Education Librarian, Duke University Medical Center Library, Durham, NC, USA;4. Statitistician, School of Nursing, Duke University, Durham, NC, USA;5. Professor, Red Cross College of Nursing, Chung-Ang University, Seoul, South Korea |