1. Professor, College of Nursing, Sahmyook University, Seoul, Korea.
2. Professor, College of Nursing, Sungshin Women's University, Seoul, Korea.
3. Professor, Seoul Women's College of Nursing, Seoul, Korea.
4. Assistant Professor, Yamanashi Prefectural University, Japan.
5. Graduate Student, College of Nursing, Sahmyook University, Seoul, Korea.