1. College of Nursing, Health and Nursing Research Institute, Jeju National University, Jeju, Korea.
2. Graduate School of Clinical Nursing Science, Sungkyunkwan University, Seoul, Korea.
3. Department of Clinical Nursing, University of Ulsan, Seoul, Korea.
4. Department of Nursing, Seoul National University Bundang Hospital, Seongnam, Korea.
5. Department of Nursing, Asan Medical Center, Seoul, Korea.