1. Associate Professor, College of Nursing, Seoul National University, Seoul, Korea.
2. Chief Nursing Officer, Seoul National University Hospital, Seoul, Korea.
3. Full-time Lecturer, Department of Nursing, Sangmyung University, Seoul, Korea.
4. Assistant Professor, Department of Nursing, Namseoul National University, Cheonan, Korea.
5. Assistant Director, Seoul National University Hospital, Seoul, Korea.