1. Assistant Professor and Researcher, Nursing Policy Research Institute, Yonsei University College of Nursing, Seoul, Korea.
2. Assistant Professor, Department of Nursing, Dong-A University, Busan, Korea.
3. Professor and Researcher, Nursing Policy Institute, Yonsei University College of Nursing, Seoul, Korea.
4. Assistant Professor and Researcher, Research Institute of Nursing Science, Seoul National University College of Nursing, Seoul, Korea.