1. College of Nursing, Jeju National University, Jeju, Korea.
2. College of Nursing, Ajou University, Suwon, Korea.
3. Department of Nursing, Semyung University, Jecheon, Korea.
4. College of Nursing, Yonsei University, Seoul, Korea.
5. Department of Nursing, Dong-Eui University, Pusan, Korea.
6. College of Nursing, Chungnam National University, Daejeon, Korea.
7. Department of Nursing, Chosun University, Gwangju, Korea.
8. Department of Nursing, Sangji University, Wonju, Korea.