1. Department of Medical Laboratory Science, College of Health Science, Dankook University, Cheonan-si, Chungnam, 31116, Republic of Korea
2. Department of Clinical Laboratory Science, Hyejeon College, Choongchung, Hongseoung 32244, Republic of Korea
3. Department of A&PEP, Research Institute, Chungbuk, 363-883, Republic of Korea