1. Eulji University Hospital, Daejeon 302-799, Republic of Korea
2. Smart Hospital, Daejeon 302-859, Republic of Korea
3. Kunsan College of Nursing, Gunsan 573-719, Republic of Korea
4. College of Nursing, Eulji University, 143-5 Yongdudong, Jung-gu, Daejeon 302-832, Republic of Korea
5. Medical Research Division, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea