1. Department of Nursing, Hallym University, Chuncheon, Korea.
2. Department of Emergency Medical Technology, Dongnam Health College, Suwon, Korea.
3. Department of Nursing, Samyook University, Seoul, Korea.
4. School of Medicine, SungKyunKwan University, Seoul, Korea.
5. Myunil Day Care Center for Children, Seoul, Korea.
6. Seoul Capitol Building Day Care Center for Children, Seoul, Korea.
7. Department of Nursing, Catholic Sangji College, Andong, Korea.
8. Redcross College of Nursing, Seoul, Korea.