1. Department of Nursing, Sehan University, Yeongam, Korea.
2. Department of Nursing, Hanseo University, Seosan, Korea.
3. Department of Nursing Science, Baekseok University, Cheonan, Korea.
4. Department of Nursing, Cheongju University, Cheongju, Korea.
5. Division of Nursing Science, Ewha Womans University, Seoul, Korea.
6. Department of Nursing, Institute of Health Science Research, Inje University, Busan, Korea.