1. Department of Nursing; Chung-Ang University; Seoul Korea
2. Department of Nursing; Design Hospital; Jeonju Jeonllabuk-do Korea
3. College of Nursing Science; East-West Nursing Research Institute; Kyung Hee University; Seoul Korea
4. Department of Nursing; College of Nursing and Public Health; Kyungil University; Gyeongsan Gyeongsangbuk-do Korea