1. School of Nursing, Duke University, Durham, NC 27710, USA
2. Connell School of Nursing, Boston College, Chestnut Hill, MA 02467, USA
3. Adventist HealthCare Shady Grove Medical Center, Rockville, MD 20850, USA
4. Duke University Health System, Durham, NC 27710, USA
5. College of Nursing, Ewha Womans University, Seoul 03760, Republic of Korea
6. School of Nursing, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
7. Medical Center Library, Duke University, Durham, NC 27708, USA