1Dongnam Health University, Suwon, Korea
2Sunlin University, Pohang, Korea
3Korea National University of Transportation, Chungju, Korea
4Kongju National University, Gongju, Korea
5Gwangju Health University, Gwangju, Korea
6Yangpyeong Fire Station, Gyeonggi-do, Korea
7Korea Coast Guard Academy, Jeollanam-do, Korea
8Kangnam Sacred Heart Hospital, Hallym University, Seoul, Korea
© 2016, National Health Personnel Licensing Examination Board of the Republic of Korea
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.