1Professor, College of Nursing Scienc, Kyung Hee University, Seoul, Korea.
2Full-time Lecturer, Department of Nursing, Seojeong College, Yangju, Korea.
3Full-time Lecturer, Department of Nursing, Ansan College, Ansan, Korea.
© 2011 Korean Society of Nursing Science
*Fisher's exact test.
*Fisher's exact test.