1. Seoul Women's College of Nursing, Seoul, Korea.
2. Department of Nursing, Wonju College of Medicine, Yonsei University, Wonju, Korea.
3. Department of Nursing, College of Medicine, Soonchunhyang University, Cheonan, Korea.
4. Red Cross College of Nursing, Seoul, Korea.
5. College of Nursing, Ajou University, Suwon, Korea.