1. College of Nursing, Pusan National University, Yangsan, Korea.
2. Department of Nursing, Dong-Eui University, Busan, Korea.
3. College of Nursing, Dong-A University, Busan, Korea.
4. Department of Nursing Science, Kyungsung University, Busan, Korea.
5. Department of Nursing, Daedong College, Busan, Korea.
6. Department of Nursing, Dongseo University, Busan, Korea.