1. Sangpyung Public Health Center, Republic of Korea
2. Department of Nursing, Namseoul University: 21 Maeju-ri, Sungwan-eup, Seobuk-Gu, Chonan-Si 331-707, Republic of Korea
3. Department of Child Welfare, Namseoul University, Republic of Korea
4. Department of Emergency Medical Technology, Kangwon National University, Republic of Korea